Update URLs based on redirects

free-courses-en.md

@@ -38,13 +38,13 @@
 
 ### Android
 
-* [Creative, Serious and Playful Science of Android Apps](https://www.coursera.org/course/androidapps101)
-* [Programming Cloud Services for Android Handheld Systems](https://www.coursera.org/course/mobilecloud)
+* [Creative, Serious and Playful Science of Android Apps](https://www.coursera.org/course/androidpart1apps101)
+* [Programming Cloud Services for Android Handheld Systems](https://www.coursera.org/course/mobilecloudprogram)
 * [Programming Mobile Applications for Android Handheld Systems pt. 1](https://www.coursera.org/course/android)
 * [Programming Mobile Applications for Android Handheld Systems pt. 2](https://www.coursera.org/course/androidpart2)
 * [Programming Mobile Services for Android Handheld Systems: Communication](https://www.coursera.org/course/posacommunication)
 * [Programming Mobile Services for Android Handheld Systems: Concurrency](https://www.coursera.org/course/posaconcurrency)
-* [Udacity Android Course Catalog](https://www.udacity.com/courses#!/android)
+* [Udacity Android Course Catalog](https://www.udacity.com/courses#!/android#!/android)
 
 
 ### AngularJS
@@ -77,7 +77,7 @@
 ### Databases
 
 * [Database Systems](http://ocw.mit.edu/courses/electrical-engineering-and-computer-science/6-830-database-systems-fall-2010/) (MIT's opencourseware)
-* [Introduction to Databases](https://class.stanford.edu/courses/Engineering/db/2014_1/about) (Stanford University)
+* [Introduction to Databases](https://lagunita.stanford.edu/courses/Engineering/db/2014_1/about) (Stanford University)
 
 
 ### Git
@@ -121,7 +121,7 @@
 * [Java for Complete Beginners](http://courses.caveofprogramming.com/courses/java-for-complete-beginners)
 * [Princeton Algorithms, Part 1](https://www.coursera.org/course/algs4partI)
 * [Princeton Algorithms, Part 2](https://www.coursera.org/course/algs4partII)
-* [Problem Solving With Java](https://www.udacity.com/course/cs046)
+* [Problem Solving With Java](https://www.udacity.com/course/intro-to-java-programming--cs046)
 
 
 ### JS
@@ -166,24 +166,23 @@
 
 ### OCaml
 
-* [Cornell's Data Structures and Functional Programming](http://www.cs.cornell.edu/courses/cs3110/)
+* [Cornell's Data Structures and Functional Programming](http://www.cs.cornell.edu/courses/cs3110/2015fa/)
 * [Introduction to Functional Programming in OCaml](https://www.france-universite-numerique-mooc.fr/courses/parisdiderot/56002/session01/about)
 
 
 ### Oracle PL/SQL
 
-* [Steven Feuerstein's PL/SQL Obsession - Videos and Presentations](http://www.toadworld.com/platforms/oracle/w/wiki/8243.plsql-obsession.aspx)
+* [Steven Feuerstein's PL/SQL Obsession - Videos and Presentations](http://www.toadworld.com/platforms/oracle/w/wiki/8243.plsql-obsession)
 
 
 ### Python
 
-* [Berkeley's Structure and Interpretation of Computer Programs](http://www-inst.eecs.berkeley.edu/~cs61a/)
+* [Berkeley's Structure and Interpretation of Computer Programs](http://cs61a.org)
 * [Google's Python Course](https://developers.google.com/edu/python/)
 * [Introduction to Computer Science and Programming](http://ocw.mit.edu/courses/electrical-engineering-and-computer-science/6-00sc-introduction-to-computer-science-and-programming-spring-2011/) (MIT's opencourseware)
 * [Learn Python](https://pythonspot.com)
 * [Learn to program in Python](https://www.codecademy.com/learn/python)
-* [Programming for Everybody](https://www.coursera.org/course/pythonlearn)
-
+* [Programming for Everybody](https://www.coursera.org/learn/python)
 
 ### R
 
@@ -197,7 +196,7 @@
 
 ### Ruby
 
-* [RubyMonk - Interactive Ruby tutorials](http://rubymonk.com)
+* [RubyMonk - Interactive Ruby tutorials](https://rubymonk.com/)
 
 
 ### Sails.Js
@@ -213,7 +212,7 @@
 
 ### Swift
 
-* [Swiftris - Build an iOS Tetris app from scratch](https://www.bloc.io/tutorials/swiftris-build-your-first-ios-game-with-swift)
+* [Swiftris - Build an iOS Tetris app from scratch](https://www.bloc.io/swiftris-build-your-first-ios-game-with-swift)
 
 
 ### Web Development
@@ -221,4 +220,4 @@
 * [Discover Flask - Full Stack Web Development with Flask](https://github.com/realpython/discover-flask)
 * [Flask(A Python Microframework) Tutorial](http://blog.miguelgrinberg.com/post/the-flask-mega-tutorial-part-i-hello-world)
 * [The Odin Project - Learn Web Development for Free](http://www.theodinproject.com)
-* [Udacity Web Development Course Catalog](https://www.udacity.com/courses#!/web-development)
+* [Udacity Web Development Course Catalog](https://www.udacity.com/courses#!/web-development#!/web-development)

free-podcasts-screencasts-en.md

@@ -19,12 +19,12 @@
 
 ### Android
 
-* [Screencast] - [Android Basics Archives - mybringback](http://www.mybringback.com/series/android-basics)
+* [Screencast] - [Android Basics Archives - mybringback](http://www.mybringback.com/series/android-basics/)
 
 
 ### AngularJS
 
-* [Podcast] - [Adventures in Angular - DevChat.tv](http://devchat.tv/adventures-in-angular/)
+* [Podcast] - [Adventures in Angular - DevChat.tv](https://devchat.tv/adventures-in-angular/)
 
 
 ### C#
@@ -34,7 +34,7 @@
 
 ### CSS
 
-* [Screencast] - [CSS-Tricks Screencasts](http://css-tricks.com/video-screencasts/)
+* [Screencast] - [CSS-Tricks Screencasts](https://css-tricks.com/video-screencasts/)
 
 
 ### Elixir
@@ -69,9 +69,9 @@
 
 ### Javascript
 
-* [Podcast] - [JavaScript Jabber](http://javascriptjabber.com)
+* [Podcast] - [JavaScript Jabber](https://devchat.tv/js-jabber/)
 * [Podcast] - [The Javascript Show](http://javascriptshow.com)
-* [Screencast] - [Free Quality Javascript video tutorials and screencasts](http://screencasts.org/topics/javascript)
+* [Screencast] - [Free Quality Javascript video tutorials and screencasts](http://www.screencasts.org/topics/javascript)
 * [Screencast] - [Node Tuts - Node.JS Video Tutorials](http://nodetuts.com)
 * [Screencast] - [ShowMeDo - Javascript Screencasts](http://showmedo.com/videotutorials/javascript)
 
@@ -79,7 +79,7 @@
 ### Language Agnostic
 
 * [Podcast] - [Frontside the Podcast](https://frontsidethepodcast.simplecast.fm)
-* [Podcast] - [Full Stack Radio](http://fullstackradio.com)
+* [Podcast] - [Full Stack Radio](http://www.fullstackradio.com/)
 * [Podcast] - [IEEE Software's "On Computing" with Grady Booch](http://www.computer.org/web/computingnow/oncomputing)
 * [Podcast] - [Programming Throwdown](http://www.programmingthrowdown.com)
 * [Podcast] - [Shop Talk Show](http://shoptalkshow.com)
@@ -100,28 +100,28 @@
 * [Podcast] - [PHP Roundtable](https://www.phproundtable.com)
 * [Podcast] - [PHP Town Hall](http://phptownhall.com)
 * [Podcast] - [Sound of Symfony](http://www.soundofsymfony.com)
-* [Podcast] - [Voices of the ElePHPant](http://voicesoftheelephpant.com)
+* [Podcast] - [Voices of the ElePHPant](https://voicesoftheelephpant.com/)
 
 
 ### Python
 
 * [Podcast] - [Podcast.__init__](http://podcastinit.com)
 * [Podcast] - [Python Test Podcast](http://pythontesting.net/test-podcast)
-* [Podcast] - [Talk Python To Me - A podcast on Python and related technologies](http://www.talkpythontome.com)
+* [Podcast] - [Talk Python To Me - A podcast on Python and related technologies](http://talkpython.fm/)
 * [Screencast] - [Diving into Django](http://code.tutsplus.com/articles/diving-into-django--net-2969)
 * [Screencast] - [ShowMeDo - Python Videos, Tutorials and Screencasts](http://showmedo.com/videotutorials/python)
-* [Screencast] - [TheNewBoston - Pygame (Python Game Development) Playlist](http://www.youtube.com/playlist?list=PL6gx4Cwl9DGAjkwJocj7vlc_mFU-4wXJq)
+* [Screencast] - [TheNewBoston - Pygame (Python Game Development) Playlist](https://www.youtube.com/playlist?list=PL6gx4Cwl9DGAjkwJocj7vlc_mFU-4wXJq)
 * [Screencast] - [TheNewBoston - Python 3.4 Programming Tutorials](https://www.youtube.com/playlist?list=PL6gx4Cwl9DGAcbMi1sH6oAMk4JHw91mC_)
-* [Screencast] - [TheNewBoston - Python GUI with Tkinter Playlist](http://www.youtube.com/playlist?list=PL6gx4Cwl9DGBwibXFtPtflztSNPGuIB_d)
-* [Screencast] - [TheNewBoston - Python Programming Tutorials - 2.x](http://www.youtube.com/playlist?list=PLEA1FEF17E1E5C0DA)
+* [Screencast] - [TheNewBoston - Python GUI with Tkinter Playlist](https://www.youtube.com/playlist?list=PL6gx4Cwl9DGBwibXFtPtflztSNPGuIB_d)
+* [Screencast] - [TheNewBoston - Python Programming Tutorials - 2.x](https://www.youtube.com/playlist?list=PLEA1FEF17E1E5C0DA)
 * [Screencast] - [Try Django Tutorial](http://youtu.be/3DccH9AMwFQ?list=PLEsfXFp6DpzRgedo9IzmcpXYoSeDg29Tx)
 
 
 ### Ruby
 
 * [Podcast] - [5by5 - Ruby on Rails Podcast](http://5by5.tv/rubyonrails)
-* [Podcast] - [ENVY LABS - Ruby5](http://ruby5.envylabs.com)
-* [Podcast] - [Ruby Rogues](http://rubyrogues.com)
+* [Podcast] - [ENVY LABS - Ruby5](https://ruby5.codeschool.com/)
+* [Podcast] - [Ruby Rogues](https://devchat.tv/ruby-rogues/)
 * [Podcast] - [The Bike Shed](http://bikeshed.fm)
 * [Podcast] - [The Ruby Show](http://rubyshow.com)
 * [Screencast] - [Free Ruby on Rails Screencasts](http://railscasts.com/?type=free)

free-programming-books-cs.md

@@ -25,12 +25,12 @@
 
 ### Bash
 
-* [Bash očima Bohdana Milara](http://www.root.cz/knihy/bash-ocima-bohdana-milara/stahnout/980/) (PDF)
+* [Bash očima Bohdana Milara](http://i.iinfo.cz/files/root/k/bash_ocima_bohdana_milara.pdf) (PDF)
 
 
 ### Java
 
-* [Java 5.0, novinky jazyka a upgrade aplikací](http://www.root.cz/knihy/java-5-0-novinky-jazyka-a-upgrade-aplikaci/stahnout/1037/) (PDF)
+* [Java 5.0, novinky jazyka a upgrade aplikací](http://i.iinfo.cz/files/root/k/java-5-0-novinky-jazyka-a-upgrade-aplikaci.pdf) (PDF)
 
 
 ### Git
@@ -47,7 +47,7 @@
 
 #### Algoritmy a datové struktury
 
-* [Základy algoritmizace](http://www.root.cz/knihy/zaklady-algoritmizace/stahnout/950/) (PDF)
+* [Základy algoritmizace](http://i.iinfo.cz/files/root/k/Zaklady_algorimizace.pdf) (PDF)
 
 
 #### Bezpečnost
@@ -113,12 +113,12 @@
 ### Python
 
 * [Ponořme se do Pythonu 3](https://knihy.nic.cz) - Mark Pilgrim (PDF)
-* [Učebnice jazyka Python](http://www.root.cz/knihy/ucebnice-jazyka-python/stahnout/920/) (PDF)
+* [Učebnice jazyka Python](http://i.iinfo.cz/files/root/k/Ucebnice_jazyka_Python.pdf) (PDF)
 
 
 ### Ruby
 
-* [Ruby Tutoriál](http://www.root.cz/knihy/ruby-tutorial/stahnout/924/) (PDF)
+* [Ruby Tutoriál](http://i.iinfo.cz/files/root/k/Ruby_tutorial.pdf) (PDF)
 
 
 ### TeX

free-programming-books-de.md

@@ -27,15 +27,15 @@
 
 ### Unabhängig von der Programmiersprache
 
-* [IT-Handbuch für Fachinformatiker](http://openbook.galileocomputing.de/it_handbuch/)
-* [Objektorientierte Programmierung](http://openbook.galileocomputing.de/oop/)
+* [IT-Handbuch für Fachinformatiker](http://openbook.rheinwerk-verlag.de/it_handbuch/)
+* [Objektorientierte Programmierung](http://openbook.rheinwerk-verlag.de/oop/)
 * [Scrum und XP im harten Projektalltag](http://www.infoq.com/resource/news/2007/06/scrum-xp-book/en/resources/ScrumAndXpFromTheTrenchesonline_German.pdf) (PDF)
 
 
 ### Action Script
 
-* [ActionScript 1 und 2](http://openbook.galileodesign.de/actionscript/)
-* [Einstieg in ActionScript](http://openbook.galileodesign.de/actionscript_einstieg/)
+* [ActionScript 1 und 2](http://openbook.rheinwerk-verlag.de/actionscript/)
+* [Einstieg in ActionScript](http://openbook.rheinwerk-verlag.de/actionscript_einstieg/)
 
 
 ### Android
@@ -50,13 +50,13 @@
 
 ### C
 
-* [C von A bis Z](http://openbook.galileocomputing.de/c_von_a_bis_z/)
+* [C von A bis Z](http://openbook.rheinwerk-verlag.de/c_von_a_bis_z/)
 * [Softwareentwicklung in C](http://www.asc.tuwien.ac.at/~eprog/download/schmaranz.pdf) (PDF)
 
 
 ### C++
 
-* [Die Boost C++ Bibliotheken](http://www.highscore.de/cpp/boost/)
+* [Die Boost C++ Bibliotheken](http://dieboostcppbibliotheken.de/)
 * [Programmieren in C++: Aufbau](http://www.highscore.de/cpp/aufbau/)
 * [Programmieren in C++: Einführung](http://www.highscore.de/cpp/einfuehrung/)
 
@@ -64,14 +64,14 @@
 ### C Sharp
 
 * [Programmieren in C#: Einführung](http://www.highscore.de/csharp/einfuehrung/)
-* [Visual C# 2008](http://openbook.galileocomputing.de/visual_csharp/)
-* [Visual C# 2010](http://openbook.galileocomputing.de/visual_csharp_2010/)
-* [Visual C# 2012](http://openbook.galileocomputing.de/visual_csharp_2012/)
+* [Visual C# 2008](http://openbook.rheinwerk-verlag.de/visual_csharp/)
+* [Visual C# 2010](http://openbook.rheinwerk-verlag.de/visual_csharp_2010/)
+* [Visual C# 2012](http://openbook.rheinwerk-verlag.de/visual_csharp_2012/)
 
 
 ### iOS
 
-* [Apps programmieren für iPhone und iPad](http://openbook.galileocomputing.de/apps_programmieren_fuer_iphone_und_ipad/)
+* [Apps programmieren für iPhone und iPad](http://openbook.rheinwerk-verlag.de/apps_programmieren_fuer_iphone_und_ipad/)
 * [iOS-Rezepte](http://examples.oreilly.de/openbooks/iosrecipesger.zip)
 * [iPad-Programmierung](http://examples.oreilly.de/openbooks/pdf_ipadprogpragger.pdf) (PDF)
 
@@ -79,7 +79,7 @@
 ### Git
 
 * [Git Magic](http://www-cs-students.stanford.edu/~blynn/gitmagic/intl/de/)
-* [Pro Git](http://git-scm.com/book/de)
+* [Pro Git](http://git-scm.com/book/de/v1)
 
 
 ### Groovy
@@ -89,25 +89,25 @@
 
 ### HTML & CSS
 
-* [CSS](http://peterkropff.de/site/css/css.htm) — Peter Kropff (Grundlagen, OOP, MySQLi, PDO) [Online, PDF]
-* [HTML](http://peterkropff.de/site/html/html.htm) — Peter Kropff [Online, PDF]
+* [CSS](http://www.peterkropff.de/site/css/css.htm) — Peter Kropff (Grundlagen, OOP, MySQLi, PDO) [Online, PDF]
+* [HTML](http://www.peterkropff.de/site/html/html.htm) — Peter Kropff [Online, PDF]
 * [HTML5-Handbuch](http://webkompetenz.wikidot.com/docs:html-handbuch)
-* [Self HTML](http://de.selfhtml.org)
+* [Self HTML](https://wiki.selfhtml.org/wiki/Startseite)
 
 
 ### Java
 
 * [EJB 3 für Umsteiger: Neuerungen und Änderungen gegenüber dem EJB-2.x-Standard](http://bsd.de/e3fu/umfrage.html) - Heiko W. Rupp
-* [Java 7 Mehr als eine Insel](http://openbook.galileocomputing.de/java7/)
-* [Java ist auch eine Insel](http://openbook.galileocomputing.de/javainsel/)
+* [Java 7 Mehr als eine Insel](http://openbook.rheinwerk-verlag.de/java7/)
+* [Java ist auch eine Insel](http://openbook.rheinwerk-verlag.de/javainsel/)
 * [Programmieren Java: Aufbau](http://www.highscore.de/java/aufbau/)
 * [Programmieren Java: Einführung](http://www.highscore.de/java/einfuehrung/)
 
 
 ### Javascript
 
-* [JavaScript](http://peterkropff.de/site/javascript/javascript.htm) — Peter Kropff (Grundlagen, AJAX, DOM, OOP) [Online, PDF]
-* [JavaScript und AJAX](http://openbook.galileocomputing.de/javascript_ajax/)
+* [JavaScript](http://www.peterkropff.de/site/javascript/javascript.htm) — Peter Kropff (Grundlagen, AJAX, DOM, OOP) [Online, PDF]
+* [JavaScript und AJAX](http://openbook.rheinwerk-verlag.de/javascript_ajax/)
 * [Webseiten erstellen mit Javascript](http://www.highscore.de/javascript/)
 
 
@@ -115,23 +115,23 @@
 
 * [LaTeX - eine Einführung und ein bißchen mehr...](http://www.fernuni-hagen.de/imperia/md/content/zmi_2010/a026_latex_einf.pdf) (PDF)
 * [LaTeX - Forteschrittene Anwendungen (oder: Neues von den Hobbits)](http://www.fernuni-hagen.de/imperia/md/content/zmi_2010/a027_latex_fort.pdf) (PDF)
-* [LaTeX : Referenz der Umgebungen, Makros, Längen und Zähler](http://www.lehmanns.de/page/latexreferenz/)
+* [LaTeX : Referenz der Umgebungen, Makros, Längen und Zähler](http://www.lehmanns.de/page/latexreferenz)
 
 
 ### Meta-Lists
 
-* [Galileo Computing - openbook](http://www.galileocomputing.de/katalog/openbook)
+* [Galileo Computing - openbook](https://www.rheinwerk-verlag.de/openbook/)
 
 
 ### MySQL
 
-* [MySQL](http://peterkropff.de/site/mysql/mysql.htm) — Peter Kropff [Online, PDF]
+* [MySQL](http://www.peterkropff.de/site/mysql/mysql.htm) — Peter Kropff [Online, PDF]
 
 
 ### PHP
 
-* [PHP](http://peterkropff.de/site/php/php.htm) — Peter Kropff (Grundlagen, OOP, MySQLi, PDO) [Online, PDF]
-* [PHP PEAR](http://openbook.galileocomputing.de/php_pear/)
+* [PHP](http://www.peterkropff.de/site/php/php.htm) — Peter Kropff (Grundlagen, OOP, MySQLi, PDO) [Online, PDF]
+* [PHP PEAR](http://openbook.rheinwerk-verlag.de/php_pear/)
 * [Praktischer Einstieg in MySQL mit PHP](http://examples.oreilly.de/openbooks/pdf_einmysql2ger.pdf) (PDF)
 
 
@@ -145,7 +145,7 @@
 * [Praxiswissen Ruby](http://www.oreilly.de/german/freebooks/rubybasger/pdf_rubybasger.pdf) (PDF)
 * [Praxiswissen Ruby On Rails](http://examples.oreilly.de/openbooks/pdf_rubyonrailsbasger.pdf) (PDF)
 * [Rails Kochbuch](http://examples.oreilly.de/openbooks/pdf_railsckbkger.pdf) (PDF)
-* [Ruby on Rails 2](http://openbook.galileocomputing.de/ruby_on_rails/)
+* [Ruby on Rails 2](http://openbook.rheinwerk-verlag.de/ruby_on_rails/)
 * [Ruby on Rails 3.2 für Ein-, Um- und Quereinsteiger](http://ruby-auf-schienen.de/3.2/)
 
 
@@ -156,18 +156,18 @@
 
 ### UML
 
-* [Der moderne Softwareentwicklungsprozess mit UML](http://www.highscore.de/uml)
+* [Der moderne Softwareentwicklungsprozess mit UML](http://www.highscore.de/uml/)
 
 
 ### Unix
 
-* [Linux-UNIX-Programmierung](http://openbook.galileocomputing.de/linux_unix_programmierung/)
-* [Shell-Programmierung](http://openbook.galileocomputing.de/shell_programmierung/)
-* [Wie werde ich Unix Guru?](http://openbook.galileocomputing.de/unix_guru/)
+* [Linux-UNIX-Programmierung](http://openbook.rheinwerk-verlag.de/linux_unix_programmierung/)
+* [Shell-Programmierung](http://openbook.rheinwerk-verlag.de/shell_programmierung/)
+* [Wie werde ich Unix Guru?](http://openbook.rheinwerk-verlag.de/unix_guru/)
 
 
 ### Visual Basic
 
-* [Einstieg in Visual Basic 2010](http://openbook.galileocomputing.de/einstieg_vb_2010/)
-* [Einstieg in Visual Basic 2012](http://openbook.galileocomputing.de/einstieg_vb_2012/)
-* [Visual Basic 2008](http://openbook.galileocomputing.de/visualbasic_2008/)
+* [Einstieg in Visual Basic 2010](http://openbook.rheinwerk-verlag.de/einstieg_vb_2010/)
+* [Einstieg in Visual Basic 2012](http://openbook.rheinwerk-verlag.de/einstieg_vb_2012/)
+* [Visual Basic 2008](http://openbook.rheinwerk-verlag.de/visualbasic_2008/)

free-programming-books-es.md

@@ -47,7 +47,7 @@
 
 ### Metalistas
 
-* [¡Quiero Aprender Python! - Python Argentina](http://python.org.ar/AprendiendoPython)
+* [¡Quiero Aprender Python! - Python Argentina](http://python.org.ar/wiki/AprendiendoPython)
 * [CodeHero](http://codehero.co)
 * [OPENLIBRA La Biblioteca Libre online que estabas esperando](http://www.etnassoft.com/biblioteca/)
 
@@ -58,11 +58,11 @@
 
 * [Algoritmos y Programación (Guía para docentes)](http://www.eduteka.org/pdfdir/AlgoritmosProgramacion.pdf) (PDF)
 * [Aprenda a programar como si estuviera en primero](http://www1.ceit.es/asignaturas/Informat1/ayudainf/aprendainf/Programar/Programar.pdf) (PDF)
-* [Apuntes de Algoritmos y Estructuras de Datos](https://sites.google.com/site/prog3unlp/home/exp_algoritmos.pdf?attredirects=0&d=1) (PDF)
-* [Breves Notas sobre Análisis de Algoritmos](http://www.matematicas.unam.mx/jloa/publicaciones/analisisdeAlgoritmos.pdf) (PDF)
+* [Apuntes de Algoritmos y Estructuras de Datos](https://146fd953-a-62cb3a1a-s-sites.googlegroups.com/site/prog3unlp/home/exp_algoritmos.pdf) (PDF)
+* [Breves Notas sobre Análisis de Algoritmos](http://lya.fciencias.unam.mx/jloa/publicaciones/analisisdeAlgoritmos.pdf) (PDF)
 * [Fundamentos de Informática y Programación](http://robotica.uv.es/Libro/Indice.html)
 * [Técnicas de Diseño de Algoritmos ](http://www.lcc.uma.es/~av/Libro/indice.html) ([PDF](http://www.lcc.uma.es/%7eav/Libro/Libro.zip))
-* [Temas selectos de estructuras de datos](http://www.matematicas.unam.mx/jloa/publicaciones/estructurasdeDatos.pdf) (PDF)
+* [Temas selectos de estructuras de datos](http://lya.fciencias.unam.mx/jloa/publicaciones/estructurasdeDatos.pdf) (PDF)
 * [Teoría sintáctico-gramatical de objetos](http://www.bubok.es/libros/219288/Teoria-sintacticogramatical-de-objetos)
 
 
@@ -77,8 +77,8 @@
 
 #### Ciencia Computacional
 
-* [Breves Notas sobre Autómatas y Lenguajes](http://www.matematicas.unam.mx/jloa/publicaciones/automatasyLenguajes.pdf) (PDF)
-* [Breves Notas sobre Teoría de la Computación](http://www.matematicas.unam.mx/jloa/publicaciones/teoria.pdf) (PDF)
+* [Breves Notas sobre Autómatas y Lenguajes](http://lya.fciencias.unam.mx/jloa/publicaciones/automatasyLenguajes.pdf) (PDF)
+* [Breves Notas sobre Teoría de la Computación](http://lya.fciencias.unam.mx/jloa/publicaciones/teoria.pdf) (PDF)
 
 
 #### Cursos Masivos en Línea
@@ -89,7 +89,7 @@
 #### Metodologías de desarrollo de software
 
 * [Compendio de Ingeniería del Software](http://www.navegapolis.com/files/cis.pdf) (PDF)
-* [Diseño Ágil con TDD](http://www.carlosble.com/libro-tdd)
+* [Diseño Ágil con TDD](http://www.carlosble.com/libro-tdd/?lang=es)
 * [Ingeniería de Software: Una Guía para Crear Sistemas de Información](http://www.wolnm.org/apa/articulos/Ingenieria_Software.pdf) (PDF)
 * [Metodologías Ágiles para el Desarrollo de Software](http://www.desarrolloweb.com/manuales/metodologias-agil-desarrollo-software.html)
 * [Scrum & Extreme Programming (para programadores)](http://www.cursosdeprogramacionadistancia.com/static/pdf/material-sin-personalizar-agile.pdf) (PDF)
@@ -98,7 +98,7 @@
 
 #### Misceláneos
 
-* [97 cosas que todo programador debería saber](http://97cosas.com/programador)
+* [97 cosas que todo programador debería saber](http://97cosas.com/programador/)
 * [El camino a un mejor programador](http://emanchado.github.io/camino-mejor-programador/)
 * [Programación de videojuegos SDL](http://www.albertogarcia.info/libros/sdl/%5Bebook%5DProgramacion%20de%20videojuegos%20con%20SDL.pdf) (PDF)
 * [Videojuegos Multiplataforma con OpenFL](http://www.openflbook.com)
@@ -130,8 +130,8 @@
 
 ### C++
 
-* [Aprenda C++ avanzado como si estuviera en primero](http://www.tecnun.es/asignaturas/Informat1/AyudaInf/aprendainf/cpp/avanzado/cppavan.pdf) (PDF)
-* [Aprenda C++ básico como si estuviera en primero](http://www.tecnun.es/asignaturas/Informat1/ayudainf/aprendainf/Cpp/basico/cppbasico.pdf) (PDF)
+* [Aprenda C++ avanzado como si estuviera en primero](http://www4.tecnun.es/asignaturas/Informat1/AyudaInf/aprendainf/cpp/avanzado/cppavan.pdf) (PDF)
+* [Aprenda C++ básico como si estuviera en primero](http://www4.tecnun.es/asignaturas/Informat1/AyudaInf/aprendainf/cpp/basico/cppbasico.pdf) (PDF)
 * [Ejercicios de programación creativos y recreativos en C++](http://antares.sip.ucm.es/cpareja/libroCPP/)
 
 
@@ -142,10 +142,10 @@
 
 ### CSS
 
-* [CSS avanzado](http://librosweb.es/css_avanzado/)
+* [CSS avanzado](http://librosweb.es/libro/css_avanzado/)
 * [Estructura con CSS](http://es.learnlayout.com)
 * [Guía Completa de CSS3](http://www.etnassoft.com/biblioteca/guia-completa-de-css3/)
-* [Introducción a CSS](http://librosweb.es/css/)
+* [Introducción a CSS](http://librosweb.es/libro/css/)
 
 
 ### Coffeescript
@@ -174,7 +174,7 @@
 
 * [Git Immersion en Español](http://gitimmersion.mx)
 * [Gitmagic](http://www-cs-students.stanford.edu/~blynn/gitmagic/intl/es/)
-* [Pro Git](http://git-scm.com/book/es)
+* [Pro Git](http://git-scm.com/book/es/v1)
 
 
 ### Haskell
@@ -189,19 +189,19 @@
 * [Arquitectura Java Sólida](http://www.arquitecturajava.com)
 * [Desarrollo de proyectos informáticos con Java](http://www3.uji.es/~belfern/pdf/libroJavaConTapa.pdf) (PDF)
 * [Guía Java para Docentes](http://ignaciolasalvia.com/material/prog1_2013/GuiaJavaparaDocentes2012.pdf) (PDF)
-* [Notas de Introducción al Lenguaje de Programación Java](http://www.matematicas.unam.mx/jloa/publicaciones/introduccionJava.pdf) - Jorge L. Ortega Arjona, UNAM (PDF)
+* [Notas de Introducción al Lenguaje de Programación Java](http://lya.fciencias.unam.mx/jloa/publicaciones/introduccionJava.pdf) - Jorge L. Ortega Arjona, UNAM (PDF)
 * [OCPJP6 Resumen Español](https://github.com/PabloReyes/ocpjp-resumen-espanol) - Pablo Reyes Almagro (PDF)
 * [Pensando la computación como un científico (con Java)](http://www.ungs.edu.ar/areas/publicaciones/476/pensando-la-computacion-como-un-cientifico.html)
 * [PlugIn Tapestry: Desarrollo de aplicaciones y páginas web con Apache Tapestry](http://picodotdev.github.io/blog-bitix/2014/02/libro-sobre-desarrollo-de-aplicaciones-con-apache-tapestry/) ([PDF](http://picodotdev.github.io/blog-bitix/assets/custom/PlugInTapestry.pdf)) ([EPUB](http://picodotdev.github.io/blog-bitix/assets/custom/PlugInTapestry.epub)) ([MOBI](http://picodotdev.github.io/blog-bitix/assets/custom/PlugInTapestry.mobi))
 * [Programación Orientada a Objetos en Java](http://fcasua.contad.unam.mx/apuntes/interiores/docs/98/opt/java.pdf) (PDF)
-* [Tutorial básico de Java EE](http://www.javahispano.org/storage/contenidos/JavaEE.pdf) (PDF)
-* [Tutorial Introducción a Maven 3](http://www.javahispano.org/storage/contenidos/Tutorial_de_Maven_3_Erick_Camacho.pdf) (PDF)
+* [Tutorial básico de Java EE](http://static1.1.sqspcdn.com/static/f/923743/14770633/1416082087870/JavaEE.pdf) (PDF)
+* [Tutorial Introducción a Maven 3](http://static1.1.sqspcdn.com/static/f/923743/15025126/1320942755733/Tutorial_de_Maven_3_Erick_Camacho.pdf) (PDF)
 
 
 ### JavaScript
 
-* [Introducción a AJAX](http://librosweb.es/ajax/)
-* [Introducción a JavaScript](http://librosweb.es/javascript/)
+* [Introducción a AJAX](http://librosweb.es/libro/ajax/)
+* [Introducción a JavaScript](http://librosweb.es/libro/javascript/)
 * [Jardín de JavaScript](http://bonsaiden.github.io/JavaScript-Garden/es)
 
 
@@ -235,14 +235,14 @@
 
 * [Bases de la programación en Bash](http://xinfo.sourceforge.net/documentos/bash-scripting/bash-script-2.0.html)
 * [BASH Scripting Avanzado: Utilizando declare para definición de tipo](http://library.originalhacker.org/biblioteca/articulo/ver/123)
-* [Debian GNU/Linux para administradores](http://debian-handbook.info/browse/es-ES/stable/)
+* [Debian GNU/Linux para administradores](https://debian-handbook.info/browse/es-ES/stable/)
 * [El Manual de BASH Scripting Básico para Principiantes](https://es.wikibooks.org/wiki/El_Manual_de_BASH_Scripting_B%C3%A1sico_para_Principiantes) en WikiBooks
 
 
 ### .NET (C# / Visual Studio)
 
 * [El lenguaje de programación C#](http://dis.um.es/~bmoros/privado/bibliografia/LibroCsharp.pdf) (PDF)
-* [Guía de Arquitectura N-capas Orientadas al Dominio](http://msdn.microsoft.com/es-es/architecture/default.aspx)
+* [Guía de Arquitectura N-capas Orientadas al Dominio](https://msdn.microsoft.com/architects-overview-msdn)
 
 
 ### NoSQL
@@ -259,9 +259,9 @@
 * [PHP y Ajax](http://rua.ua.es/dspace/bitstream/10045/13176/9/04-ajaxphp.pdf) (PDF)
 * [PHP y Programación orientada a objetos](https://styde.net/php-y-programacion-orientada-a-objetos/)
 * [POO y MVC en PHP](http://www.bubok.es/libros/205199/POO-y-MVC-en-PHP)
-* [Silex, el manual oficial](http://librosweb.es/silex/)
-* [Symfony 1.4, la guía definitiva](http://librosweb.es/symfony_1_4/)
-* [Symfony 2.3, el libro oficial](http://librosweb.es/symfony_2_3/)
+* [Silex, el manual oficial](http://librosweb.es/libro/silex/)
+* [Symfony 1.4, la guía definitiva](http://librosweb.es/libro/symfony_1_4/)
+* [Symfony 2.3, el libro oficial](http://librosweb.es/libro/symfony_2_3/)
 
 
 ### Perl
@@ -284,7 +284,7 @@
 * [Introducción a Programando con Python](http://opentechschool.github.io/python-beginners/es_CL/)
 * [Notas sobre el lenguaje Python](http://www.cmat.edu.uy/cmat/cursos/licenciatura/cursos/computacion/documentos/pynotas.pdf/at_download/file) (PDF)
 * [Python instantáneo](http://www.arrakis.es/~rapto/AprendaPython.html)
-* [Python para ciencia e ingeniería](https://github.com/mgaitan/python-ingenieria)
+* [Python para ciencia e ingeniería](https://github.com/mgaitan/curso-python-cientifico)
 * [Python para principiantes](http://www.cursosdeprogramacionadistancia.com/static/pdf/material-sin-personalizar-python.pdf) (PDF) [(HTML)](http://librosweb.es/libro/python/)
 * [Python para todos](https://launchpadlibrarian.net/18980633/Python%20para%20todos.pdf) (PDF)
 

free-programming-books-fa_IR.md

@@ -42,7 +42,7 @@
 
 ### PHP
 
-* [آموزش فریمورک لاراول](http://laravel.ir)
+* [آموزش فریمورک لاراول](http://www.laravel.ir/)
 
 
 ### Python

free-programming-books-fr.md

@@ -50,11 +50,11 @@
 
 #### Algorithmique
 
-* [Algorithmique](http://pauillac.inria.fr/~quercia/cdrom/cours) - Michel Quercia
+* [Algorithmique](http://pauillac.inria.fr/~quercia/cdrom/cours/) - Michel Quercia
 * [Complexité algorithmique](http://www.liafa.univ-paris-diderot.fr/~sperifel/livre_complexite.html) - Sylvain Perifel
 * [Éléments d'algorithmique](http://www-igm.univ-mlv.fr/~berstel/Elements/Elements.pdf) - D. Beauquier, J. Berstel, et Ph. Chrétienne (PDF)
 * [France-IOI](http://www.france-ioi.org)
-* [Prologin](http://www.prologin.org)
+* [Prologin](https://prologin.org/)
 
 
 #### Logiciels libres
@@ -62,7 +62,7 @@
 * [Histoires et cultures du libres](http://framabook.org/histoiresetculturesdulibre/)
 * [Option libre. Du bon usage des licences libres](http://framabook.org/optionlibre-dubonusagedeslicenceslibres/) - Jean Benjamin
 * [Produire du logiciel libre](http://framabook.org/produire-du-logiciel-libre-2/) - Karl Fogel
-* [Richard Stallman et la révolution du logiciel libre](http://framabook.org/richard-stallman-et-la-revolution-du-logiciel-libre/) - R.M. Stallman, S. Williams et C. Masutti
+* [Richard Stallman et la révolution du logiciel libre](http://framabook.org/richard-stallman-et-la-revolution-du-logiciel-libre-2/) - R.M. Stallman, S. Williams et C. Masutti
 
 
 #### Makefile
@@ -110,12 +110,12 @@
 ### C / C++
 
 * [Cours de C/C++](http://casteyde.christian.free.fr/cpp/cours/online/book1.html) - Christian Casteyde
-* [Le C en 20 heures](http://framabook.org/6-le-c-en-20-heures/) - Eric Berthomier et Daniel Schang
+* [Le C en 20 heures](http://framabook.org/le-c-en-20-heures-2/) - Eric Berthomier et Daniel Schang
 
 
 ### Coq
 
-* [Le Coq'Art (V8)](http://www.labri.fr/perso/casteran/CoqArt) - Yves Bertot et Pierre Castéran
+* [Le Coq'Art (V8)](http://www.labri.fr/perso/casteran/CoqArt/) - Yves Bertot et Pierre Castéran
 * [Preuves de programmes en coq](http://fuscia.inrialpes.fr/cours/coq/) - Yves Bertot
 
 
@@ -143,7 +143,7 @@
 
 ### jQuery
 
-* [Apprendre jQuery](http://sutterlity.gitbooks.io/apprendre-jquery/) - Sutterlity Laurent
+* [Apprendre jQuery](https://www.gitbook.com/book/sutterlity/apprendre-jquery/details) - Sutterlity Laurent
 
 
 ### Haskell
@@ -159,7 +159,7 @@
 * [(Xe)LaTeX appliqué aux sciences humaines](http://geekographie.maieul.net/95) - Maïeul Rouquette
 * [Détecter et résoudre les problèmes](http://www.pearson.fr/livre/?GCOI=27440100048330), Annexe B du LaTeX Companion 2006, par Frank Mittelbach et Michel Goossens, mis à disposition par l'éditeur dans l'onglet « Compléments »
 * [LaTeX... pour le prof de maths !](http://math.univ-lyon1.fr/irem/IMG/pdf/LatexPourProfMaths.pdf) - Arnaud Gazagnes (PDF)
-* [Tout ce que vous avez toujours voulu savoir sur LaTeX sans jamais oser le demander](http://framabook.org/5-tout-ce-que-vous-avez-toujours-voulu-savoir-sur-latex-sans-jamais-oser-le-demander/) - Vincent Lozano
+* [Tout ce que vous avez toujours voulu savoir sur LaTeX sans jamais oser le demander](http://framabook.org/tout-sur-latex/) - Vincent Lozano
 
 
 #### Asymptote
@@ -197,7 +197,7 @@
 
 ### Meteor
 
-* [Apprendre Meteor](http://mquandalle.gitbooks.io/apprendre-meteor/) - Maxime Quandalle
+* [Apprendre Meteor](https://www.gitbook.com/book/mquandalle/apprendre-meteor/details) - Maxime Quandalle
 * [Discover Meteor](http://fr.discovermeteor.com) - Tom Coleman et Sacha Greif
 
 
@@ -210,14 +210,14 @@
 ### PHP
 
 * [Cours de PHP 5](http://g-rossolini.developpez.com/tutoriels/php/cours/?page=introduction) - Guillaume Rossolini
-* [Initiation au PHP](http://www.framasoft.net/IMG/pdf/initiation_php.pdf) - David Ducrocq (PDF)
+* [Initiation au PHP](http://framasoft.net/IMG/pdf/initiation_php.pdf) - David Ducrocq (PDF)
 * [Programmer en PHP](http://www.lincoste.com/ebooks/pdf/informatique/programmer_php.pdf) - Julien Gaulmin (PDF)
 
 
 ### Python
 
 * [Appendre à programmer avec Python](http://inforef.be/swi/python.htm) - Gerard Swinnen
-* [Dropbox a des fuites ! Un aperçu de la rétro-ingénierie des programmes Python](http://pdp.microjoe.org/articles/34/dropbox-a-des-fuites)
+* [Dropbox a des fuites ! Un aperçu de la rétro-ingénierie des programmes Python](http://pdp.microjoe.org/tutoriels/280/dropbox-a-des-fuites/)
 * [Python](http://www.lincoste.com/ebooks/pdf/informatique/python.pdf) - Guido Van Rossum (PDF)
 * [Une introduction à Python 3](https://perso.limsi.fr/pointal/python:courspython3) - Bob Cordeau et Laurent Pointal
 
@@ -261,4 +261,4 @@
 ### Vim
 
 * [Learn Vim Progressively](http://yannesposito.com/Scratch/fr/blog/Learn-Vim-Progressively/)
-* [Vim pour les humains](http://vimebook.com) - Vincent Jousse (le livre n'est pas **gratuit** mais **à prix libre**)
+* [Vim pour les humains](https://vimebook.com/fr) - Vincent Jousse (le livre n'est pas **gratuit** mais **à prix libre**)

free-programming-books-hu.md

@@ -22,7 +22,7 @@
 * [Az adatbázistervezés alapjai és titkai](http://mek.oszk.hu/11100/11123/index.phtml) - Halassy Béla (Word, PDF)
 * [Ember, információ, rendszer](http://mek.oszk.hu/11100/11122/index.phtml) - Halassy Béla (Word, PDF)
 * [Formális nyelvek](http://mek.oszk.hu/05000/05099/index.phtml) - Bach Iván (PDF)
-* [Kanban és Scrum mindkettőből a legjobbat](http://www.adaptiveconsulting.hu/dokumentumok) - Henrik Kniberg, Mattias Skarin, ford.: Csutorás Zoltán és Marhefka István (PDF)
+* [Kanban és Scrum mindkettőből a legjobbat](http://www.adaptiveconsulting.hu) - Henrik Kniberg, Mattias Skarin, ford.: Csutorás Zoltán és Marhefka István (PDF)
 * [Mese a felhasználó központú tervezőről](http://mek.oszk.hu/11700/11748/index.phtml) - David Travis, ford.: Favorit Fordító Iroda (PDF)
 * [Prognyelvek portál](http://nyelvek.inf.elte.hu/index.php) - Felelős oktató: Nyékyné Gaizler Judit (HTML)
 
@@ -109,4 +109,4 @@
 
 ### Windows Phone
 
-* [Windows Phone fejlesztés lépésről lépésre](http://mek.oszk.hu/10300/10393) - Árvai Zoltán, Fár Attila Gergő, Farkas Bálint, Fülöp Dávid, Komjáthy Szabolcs, Turóczi Attila, Velvárt András (PDF)
+* [Windows Phone fejlesztés lépésről lépésre](http://mek.oszk.hu/10300/10393/) - Árvai Zoltán, Fár Attila Gergő, Farkas Bálint, Fülöp Dávid, Komjáthy Szabolcs, Turóczi Attila, Velvárt András (PDF)

free-programming-books-id.md

@@ -10,7 +10,7 @@
 ### Android
 
 * [Tutorial Membuat Aplikasi Android **Special Edition**](http://www.slideshare.net/creatorb/tutorial-lengkap-cara-membuat-aplikasi-android-sederhana)
-* [Tutorial Membuat Aplikasi Audioplayer Android](https://www.scribd.com/doc/258469346/Android-Tutorial-Audioplayer-Murottal-Pondokprogrammer-Mobile)
+* [Tutorial Membuat Aplikasi Audioplayer Android](http://www.scribd.com/doc/258469346/Android-Tutorial-Audioplayer-Murottal-Pondokprogrammer-Mobile)
 * [Tutorial Membuat Aplikasi Galeri Foto Android](https://www.smashwords.com/books/view/533096)
 
 
@@ -22,12 +22,12 @@
 ### javascript
 
 * [Mengenal Javascript](http://masputih.com/2013/01/ebook-gratis-mengenal-javascript)
-* [Otomatisasi dengan gulp.js](http://kristories.gitbooks.io/otomatisasi-dengan-gulp-js/)
+* [Otomatisasi dengan gulp.js](https://kristories.gitbooks.io/otomatisasi-dengan-gulp-js//)
 
 
 ### NoSQL
 
-* [MongoDB Untuk Indonesia](http://kristories.gitbooks.io/mongodb-untuk-indonesia/)
+* [MongoDB Untuk Indonesia](https://kristories.gitbooks.io/mongodb-untuk-indonesia//)
 
 
 ### php

free-programming-books-it.md

@@ -35,7 +35,7 @@
 
 ### Android
 
-* [Guida programmazione Android 4.2](http://www.sprik.it/guida/Android4_2.pdf) (PDF)
+* [Guida programmazione Android 4.2](http://www.sprik.it/download/guida-programmazione-android-4-2/) (PDF)
 
 
 ### Assembly Language
@@ -56,7 +56,7 @@
 
 ### C Sharp
 
-* [AB..C# - Guida alla programmazione](http://www.youblisher.com/files/publications/4/21542/pdf.pdf) (PDF)
+* [AB..C# - Guida alla programmazione](http://www.youblisher.com/p/21542-ABC-Guida-alla-programmazione/) (PDF)
 
 
 ### GIT

free-programming-books-ja.md

@@ -78,7 +78,7 @@
 
 * [iOS アクセシビリティ プログラミング ガイド](https://developer.apple.com/jp/devcenter/ios/library/documentation/iPhoneAccessibility.pdf) - Apple Developer (PDF)
 * [Accessible Rich Internet Applications](https://developer.mozilla.org/ja/docs/ARIA/Accessible_Rich_Internet_Applications) - MDN
-* [アクセシビリティのための設計](http://msdn.microsoft.com/ja-jp/library/windows/apps/hh700407.aspx) - MSDN Library
+* [アクセシビリティのための設計](https://msdn.microsoft.com/ja-jp/library/windows/apps/hh700407.aspx) - MSDN Library
 
 
 #### 機械学習
@@ -104,7 +104,7 @@
 * [GLUTによる「手抜き」OpenGL入門](http://www.wakayama-u.ac.jp/~tokoi/opengl/libglut.html) - 床井浩平
 * [仮想物理実験室構築のためのOpenGL, WebGL, GLSL入門](http://www.natural-science.or.jp/laboratory/opengl_intro.php) - 遠藤理平
 * [iOS OpenGL ES プログラミングガイド](https://developer.apple.com/jp/devcenter/ios/library/documentation/OpenGLES_ProgrammingGuide.pdf) - Apple Developer (PDF)
-* [DirectX を使った初めての Windows ストア アプリの作成](http://msdn.microsoft.com/ja-jp/library/windows/apps/br229580.aspx) - MSDN Library
+* [DirectX を使った初めての Windows ストア アプリの作成](https://msdn.microsoft.com/ja-jp/library/windows/apps/br229580.aspx) - MSDN Library
 
 
 #### グラフィックユーザーインターフェイス
@@ -116,7 +116,7 @@
 #### 正規表現
 
 * [正規表現メモ](http://www.kt.rim.or.jp/~kbk/regex/regex.html) - 木村浩一
-* [.NET Framework の正規表現](http://msdn.microsoft.com/ja-jp/library/vstudio/hs600312.aspx) - MSDN Library
+* [.NET Framework の正規表現](https://msdn.microsoft.com/library/hs600312.aspx) - MSDN Library
 
 
 #### セキュリティ
@@ -195,7 +195,7 @@
 
 * [Android アプリ開発のための Java 入門](https://gist.github.com/nobuoka/6546813) - id:nobuoka
 * [コントリビュータのためのAndroidコードスタイルガイドライン 日本語訳](http://www.textdrop.net/android/code-style-ja.html) - Android Open Source Project, Takashi Sasai(翻訳)
-* [Androidアプリのセキュア設計・セキュアコーディングガイド](http://www.jssec.org/report/securecoding.html) - 一般社団法人日本スマートフォンセキュリティ協会(JSSEC)
+* [Androidアプリのセキュア設計・セキュアコーディングガイド](https://www.jssec.org/report/securecoding.html) - 一般社団法人日本スマートフォンセキュリティ協会(JSSEC)
 * [Android Open Text book](https://github.com/TechBooster/AndroidOpenTextbook) - TechBooster
 
 
@@ -210,7 +210,7 @@
 
 * [Bash基礎文法最速マスター](http://d.hatena.ne.jp/nattou_curry_2/20100131/1264910483) - id:nattou\_curry
 * [UNIX & Linux コマンド・シェルスクリプト リファレンス](http://shellscript.sunone.me) - SUNONE
-* [BASH Programming - Introduction HOW-TO](http://linuxjf.sourceforge.jp/JFdocs/Bash-Prog-Intro-HOWTO.html) - Mike G, 千旦裕司(翻訳)
+* [BASH Programming - Introduction HOW-TO](http://linuxjf.osdn.jp/JFdocs/Bash-Prog-Intro-HOWTO.html) - Mike G, 千旦裕司(翻訳)
 
 
 ### C
@@ -218,7 +218,7 @@
 * [Ｃプログラミング診断室](http://www.pro.or.jp/~fuji/mybooks/cdiag/index.html) - 藤原博文
 * [猫でもわかるプログラミング](http://kumei.ne.jp/c_lang/) - 粂井康孝
 * [計算物理のためのC/C++言語入門](http://www-cms.phys.s.u-tokyo.ac.jp/~naoki/CIPINTRO/) - 渡辺尚貴
-* [C言語](http://ja.wikibooks.org/wiki/C%E8%A8%80%E8%AA%9E) - Wikibooks
+* [C言語](https://ja.wikibooks.org/wiki/C%E8%A8%80%E8%AA%9E) - Wikibooks
 * [C言語プログラミング入門](http://densan-labs.net/tech/clang/) - @nishio\_dens
 * [ゲーム作りで学ぶ！実践的C言語プログラミング](http://densan-labs.net/tech/game/) - @nishio\_dens
 
@@ -228,7 +228,7 @@
 * [C++入門](http://www.asahi-net.or.jp/~yf8k-kbys/newcpp0.html) - 小林健一郎
 * [ロベールのＣ＋＋教室](http://www7b.biglobe.ne.jp/~robe/cpphtml/) - ロベール
 * [cpprefjp - C++ Reference Site in Japanese](http://cpprefjp.github.io)
-* [C++11の文法と機能(C++11: Syntax and Feature)](https://ezoeryou.github.com/cpp-book/C++11-Syntax-and-Feature.xhtml) - 江添亮
+* [C++11の文法と機能(C++11: Syntax and Feature)](http://ezoeryou.github.io/cpp-book/C++11-Syntax-and-Feature.xhtml) - 江添亮
 * [Google C++スタイルガイド 日本語訳](http://www.textdrop.net/google-styleguide-ja/cppguide.xml) - Benjy Weinberger, Craig Silverstein, Gregory Eitzmann, Mark Mentovai, Tashana Landray, Takashi Sasai(翻訳)
 * [Standard Template Library プログラミング](http://episteme.wankuma.com/stlprog/) - επιστημη
 
@@ -296,13 +296,13 @@
 ### Gradle
 
 * [Gradle 日本語ドキュメント](http://gradle.monochromeroad.com/docs/) - Hayashi Masatoshi, Sekiya Kazuchika, Sue Nobuhiro, Mochida Shinya ([PDF](http://gradle.monochromeroad.com/docs/userguide/userguide.pdf))
-* [ビルドツールGradleスタートアップガイドの紹介](http://www.ntts.co.jp/publish/column/tec/java_03/) - 鈴木雅貴
+* [ビルドツールGradleスタートアップガイドの紹介](https://www.ntts.co.jp/column/tec/java_03/index2.html) - 鈴木雅貴
 
 
 ### Grails
 
 * [Grailsフレームワーク 日本語リファレンス](http://grails.jp/doc/latest/) - T.Yamamoto & Japanese Grails Doc Translating Team. Special thanks to NTT Software.
-* [Grailsを用いたファイルアップローダ作成](http://www.ntts.co.jp/publish/column/tec/java_02/) - 須藤悠
+* [Grailsを用いたファイルアップローダ作成](https://www.ntts.co.jp/column/tec/java_02/index2.html) - 須藤悠
 
 
 ### Spock Framework
@@ -343,7 +343,7 @@
 
 * [JavaScript基礎文法最速マスター](http://gifnksm.hatenablog.jp/entry/20100131/1264934942) - id:gifnksm
 * [Mozilla Developer Network 日本語ドキュメント](https://developer.mozilla.org/ja/docs/Web/JavaScript) - MDN
-* [JavaScript 言語リファレンス](http://msdn.microsoft.com/ja-jp/library/d1et7k7c.aspx) - MSDN Library
+* [JavaScript 言語リファレンス](https://msdn.microsoft.com/ja-jp/library/d1et7k7c.aspx) - MSDN Library
 * [JavaScript Programming](http://www.geocities.jp/m_hiroi/light/javascript.html) - 広井誠
 * [一撃必殺JavaScript日本語リファレンス](http://www.openspc2.org/JavaScript/) - 古籏一浩
 * [JavaScript によるイベントドリブン](https://github.com/hatena/Hatena-Textbook/blob/master/javascript-event-driven.md) - はてな教科書
@@ -380,14 +380,14 @@
 
 * [TeX入門 TeX Wiki](http://oku.edu.mie-u.ac.jp/~okumura/texwiki/?TeX%E5%85%A5%E9%96%80) - 奥村晴彦
 * [TeX入門](http://www.comp.tmu.ac.jp/tsakai/lectures/intro_tex.html) - 酒井高司
-* [TeX/LaTeX入門](http://ja.wikibooks.org/wiki/TeX/LaTeX%E5%85%A5%E9%96%80) - Wikibooks
+* [TeX/LaTeX入門](https://ja.wikibooks.org/wiki/TeX/LaTeX%E5%85%A5%E9%96%80) - Wikibooks
 
 
 ### Linux
 
 * [Linux Device Driver](http://www.mech.tohoku-gakuin.ac.jp/rde/contents/linux/drivers/indexframe.html) - 熊谷正朗
-* [Secure Programming for Linux and Unix HOWTO](http://linuxjf.sourceforge.jp/JFdocs/Secure-Programs-HOWTO/) - David A. Wheeler, 高橋聡(翻訳)
-* [Linux from Scratch (Version 7.4)](http://lfsbookja.sourceforge.jp/7.4.ja/) - Gerard Beekmans, 松山道夫(翻訳)
+* [Secure Programming for Linux and Unix HOWTO](http://linuxjf.osdn.jp/JFdocs/Secure-Programs-HOWTO/) - David A. Wheeler, 高橋聡(翻訳)
+* [Linux from Scratch (Version 7.4)](http://lfsbookja.osdn.jp/7.4.ja/) - Gerard Beekmans, 松山道夫(翻訳)
 
 
 ### Lua
@@ -400,7 +400,7 @@
 ### Maven
 
 * [Maven](http://www.techscore.com/tech/Java/ApacheJakarta/Maven/) - シナジーマーケティング株式会社
-* [What is Maven?](https://github.com/eller86/what-is-maven) - Kengo TODA
+* [What is Maven?](https://github.com/KengoTODA/what-is-maven) - Kengo TODA
 
 
 ### Mercurial
@@ -441,7 +441,7 @@
 * [Perl基礎文法最速マスター](http://d.hatena.ne.jp/perlcodesample/20091226/1264257759) - 木本裕紀
 * [Perlのコアドキュメント](http://perldoc.jp/index/core) - 一般社団法人 Japan Perl Association (JPA)
 * [2時間半で学ぶPerl](http://qntm.org/files/perl/perl_jp.html) - Sam Hughes, Kato Atsusi(翻訳)
-* [Perl](http://ja.wikibooks.org/wiki/Perl) - Wikibooks
+* [Perl](https://ja.wikibooks.org/wiki/Perl) - Wikibooks
 * [Perl によるオブジェクト指向プログラミング](https://github.com/hatena/Hatena-Textbook/blob/master/oop-for-perl.md) - はてな教科書
 * [Perlでのデータベース操作](https://github.com/hatena/Hatena-Textbook/blob/master/db-control-by-dbi.md) - はてな教科書
 * [MVC によるウェブアプリケーション開発 (Plack を使った開発)](https://github.com/hatena/Hatena-Textbook/blob/master/mvc-web-application-with-plack.md) - はてな教科書
@@ -460,7 +460,7 @@
 ### PowerShell
 
 * [PowerShell基礎文法最速マスター](http://winscript.jp/powershell/202) - 牟田口大介
-* [Windows PowerShell コア](http://technet.microsoft.com/ja-jp/library/bb978525.aspx) - Microsoft TechNet
+* [Windows PowerShell コア](https://technet.microsoft.com/ja-jp/library/bb978525.aspx) - Microsoft TechNet
 
 
 ### Processing
@@ -539,7 +539,7 @@
 ### Scala
 
 * [Effective Scala](http://twitter.github.io/effectivescala/index-ja.html)
-* [Learning Scalaz](http://eed3si9n.com/learning-scalaz/ja)
+* [Learning Scalaz](http://eed3si9n.com/learning-scalaz/ja/)
 * [tetrix in Scala](http://eed3si9n.com/tetrix-in-scala-html5-book)
 
 
@@ -547,7 +547,7 @@
 
 * [Gauche ユーザリファレンス](http://practical-scheme.net/gauche/man/gauche-refj.html) - 川合史朗
 * [お気楽 Scheme プログラミング入門](http://www.geocities.jp/m_hiroi/func/scheme.html) - 広井誠
-* [Scheme](http://ja.wikibooks.org/wiki/Scheme) - Wikibooks
+* [Scheme](https://ja.wikibooks.org/wiki/Scheme) - Wikibooks
 * [もうひとつの Scheme 入門](http://www.shido.info/lisp/idx_scm.html) - 紫藤貴文
 * [入門Scheme](https://web.archive.org/web/20140812144348/http://www4.ocn.ne.jp/~inukai/scheme_primer_j.html) - 犬飼大
 * [Scheme入門 スーパービギナー編](https://sites.google.com/site/atponslisp/home/scheme/racket/schemenyuumon-1/schemenyuumon)
@@ -598,7 +598,7 @@
 ### VBA
 
 * [VBA基礎文法最速マスター](http://d.hatena.ne.jp/nattou_curry_2/20100129/1264787849) - id:nattou\_curry
-* [Office 2013 Visual Basic for Applications 言語リファレンス](http://msdn.microsoft.com/ja-jp/library/office/gg264383.aspx) - MSDN Library
+* [Office 2013 Visual Basic for Applications 言語リファレンス](https://msdn.microsoft.com/ja-jp/library/office/gg264383.aspx) - MSDN Library
 * [Excel 2013 で学ぶ Visual Basic for Applications (VBA)](http://brain.cc.kogakuin.ac.jp/~kanamaru/lecture/vba2013/index.html) - 金丸隆志
 
 

free-programming-books-ko.md

@@ -20,7 +20,7 @@
 ### GIT
 
 * [Pro Git 한글 번역](http://git-scm.com/book/ko/)
-* [GitHub Flavored Markdown](https://help.github.com/articles/github-flavored-markdown)
+* [GitHub Flavored Markdown](https://help.github.com/articles/github-flavored-markdown/)
 * [Git - 간편 안내서](http://rogerdudler.github.io/git-guide/index.ko.html)
 * [깃허브 치트 시트](https://github.com/tiimgreen/github-cheat-sheet/blob/master/README.ko.md)
 

free-programming-books-pl.md

@@ -23,11 +23,11 @@
 ### Niezależne od języka programowania
 
 * [W obronie wolności](http://stallman.helion.pl)
-* [Git](http://pl.wikibooks.org/wiki/Git)
-* [Pro Git](http://git-scm.com/book/pl)
-* [SVN](http://pl.wikibooks.org/wiki/Subversion)
+* [Git](https://pl.wikibooks.org/wiki/Git)
+* [Pro Git](http://git-scm.com/book/pl/)
+* [SVN](https://pl.wikibooks.org/wiki/Subversion)
 * [System kontroli wersji Subversion](http://svnbook.opensys.pl)
-* [Pisanie OS](http://pl.wikibooks.org/wiki/Pisanie_OS)
+* [Pisanie OS](https://pl.wikibooks.org/wiki/Pisanie_OS)
 
 
 ### Android
@@ -38,8 +38,8 @@
 
 ### C
 
-* [Programowanie w C](http://upload.wikimedia.org/wikibooks/pl/6/6a/C.pdf) (PDF)
-* [Podstawy programowania Unixa/Linuxa](http://www.opcode.eu.org/more_advanced/programing/c_cpp/)
+* [Programowanie w C](https://upload.wikimedia.org/wikibooks/pl/6/6a/C.pdf) (PDF)
+* [Podstawy programowania Unixa/Linuxa](http://www.opcode.eu.org/programing/c_cpp/)
 
 
 ### C++
@@ -61,7 +61,7 @@
 
 ### Haskell
 
-* [Haskell](http://pl.wikibooks.org/wiki/Haskell)
+* [Haskell](https://pl.wikibooks.org/wiki/Haskell)
 
 
 ### HTML
@@ -77,7 +77,7 @@
 ### JavaScript
 
 * [JavaScript Garden](http://bonsaiden.github.io/JavaScript-Garden/pl)
-* [JavaScript. I wszystko jasne](http://www.bt4.pl/kursy/javascript/wszystko-jasne/)
+* [JavaScript. I wszystko jasne](http://shebang.pl/kursy/wszystko-jasne/)
 
 
 ### LaTeX
@@ -93,7 +93,7 @@
 
 ### PHP
 
-* [PHP](http://pl.wikibooks.org/wiki/PHP)
+* [PHP](https://pl.wikibooks.org/wiki/PHP)
 * [PHP: The Right Way](http://pl.phptherightway.com)
 * [Kurs PHP](http://phpkurs.pl)
 
@@ -106,13 +106,13 @@
 ### Python
 
 * [Ukąś Pythona](http://python.edu.pl/byteofpython/index.html)
-* [Zanurkuj w Pythonie](http://pl.wikibooks.org/wiki/Zanurkuj_w_Pythonie)
+* [Zanurkuj w Pythonie](https://pl.wikibooks.org/wiki/Zanurkuj_w_Pythonie)
 * [Biblioteka Pythona](http://www.python.rk.edu.pl)
 
 
 ### Ruby
 
-* [Ruby](http://pl.wikibooks.org/wiki/Ruby)
+* [Ruby](https://pl.wikibooks.org/wiki/Ruby)
 
 
 ### Scala

free-programming-books-pt_BR.md

@@ -29,7 +29,7 @@
 ### C
 
 * [Apostila Linguagem C - Silvio Lago](http://www.ime.usp.br/~slago/slago-C.pdf) (PDF)
-* [Introdução a Programação](https://github.com/edusantana/introducao-a-programacao-livro/releases) - livro adotado na UFPB.
+* [Introdução a Programação](https://github.com/ufpb-computacao/introducao-a-programacao-livro/releases) - livro adotado na UFPB.
 * [Introdução ao Curso de C ](http://www.ic.unicamp.br/~mc102/introducao-ao-curso-de-c.html).
 * [O Fantástico Mundo da Linguagem C](https://fiorix.wordpress.com/2014/04/12/livro-sobre-c-e-linux/)
 * [Projeto de Algoritmos em C](http://www.ime.usp.br/~pf/algoritmos/)
@@ -61,7 +61,7 @@
 
 * [Aprendendo Git](http://www.slideshare.net/bismarckjunior/aprendendo-git)
 * [Git Magic](http://www-cs-students.stanford.edu/~blynn/gitmagic/intl/pt_br/)
-* [Pro Git](http://git-scm.com/book/pt-br)
+* [Pro Git](http://git-scm.com/book/pt-br/)
 * [Git - guia prático](http://rogerdudler.github.io/git-guide/index.pt_BR.html)
 
 
@@ -72,7 +72,7 @@
 
 ### HTML / CSS
 
-* [Curso de HTML5 em vídeo do Guanabara](http://www.youtube.com/playlist?list=PLHz_AreHm4dlAnJ_jJtV29RFxnPHDuk9o)
+* [Curso de HTML5 em vídeo do Guanabara](https://www.youtube.com/playlist?list=PLHz_AreHm4dlAnJ_jJtV29RFxnPHDuk9o)
 * [Desenvolvendo para browsers antigos](http://tableless.com.br/browsers-antigos-guerra-contra-o-terror/)
 * [Desenvolvimento Web com HTML, CSS e JavaScript](https://www.caelum.com.br/apostila-html-css-javascript/)
 * [Dive Into HTML5](http://diveintohtml5.com.br)
@@ -125,7 +125,7 @@
 * [Django 101 - Introdução ao Django](http://turing.com.br/material/acpython/mod3/django/index.html)
 * [O tutorial de Python](http://turing.com.br/pydoc/2.7/tutorial/)
 * [Python Orientado a Objetos](http://www.dcc.ufrj.br/~fabiom/mab225/pythonoo.pdf) (PDF)
-* [Python para Desenvolvedores](http://ark4n.files.wordpress.com/2010/01/python_para_desenvolvedores_2ed.pdf) (PDF)
+* [Python para Desenvolvedores](https://ark4n.files.wordpress.com/2010/01/python_para_desenvolvedores_2ed.pdf) (PDF)
 * [Tutorial Django Girls](http://tutorial.djangogirls.org/pt/)
 
 
@@ -136,7 +136,7 @@
 
 ### Ruby
 
-* [Aprenda a Programar](http://aprendaaprogramar.rubyonrails.com.br)
+* [Aprenda a Programar](http://www.jmonteiro.com/aprendaaprogramar/)
 * [Conhecendo Ruby](http://howtocode.com.br/ebooks/ruby)
 * [Conhecendo Ruby - Eustaquio Rangel](https://leanpub.com/conhecendo-ruby/read)
 * [O (comovente) guia de Ruby do Why](http://why.carlosbrando.com)

free-programming-books-pt_PT.md

@@ -20,7 +20,7 @@
 
 ### Haskell
 
-* [Programação Funcional CC](http://www3.di.uminho.pt/~mjf/pub/PF-Haskell.pdf) - Maria João Frade (PDF)
+* [Programação Funcional CC](http://www4.di.uminho.pt/~mjf/pub/PF-Haskell.pdf) - Maria João Frade (PDF)
 
 
 ### LaTeX
@@ -31,4 +31,4 @@
 
 ### Prolog
 
-* [Lógica Computacional (com Prolog)](http://www3.di.uminho.pt/~mjf/pub/LC-Prolog.pdf) - Maria João Frade (PDF)
+* [Lógica Computacional (com Prolog)](http://www4.di.uminho.pt/~mjf/pub/LC-Prolog.pdf) - Maria João Frade (PDF)

free-programming-books-ro.md

@@ -21,7 +21,7 @@
 
 ### HMTL
 
-* [HTML](http://tutorialehtml.com/htmlt)
+* [HTML](http://tutorialehtml.com/en/html-tutorial-complete-html-guide/)
 
 
 ### JavaScript

free-programming-books-ru.md

@@ -74,7 +74,7 @@
 
 ### Assembly
 
-* [Ассемблер в Linux для программистов C](http://ru.wikibooks.org/wiki/Ассемблер_в_Linux_для_программистов_C)
+* [Ассемблер в Linux для программистов C](https://ru.wikibooks.org/wiki/Ассемблер_в_Linux_для_программистов_C)
 * [Ассемблер для чайников](http://av-assembler.ru/asm/afd/assembler-for-dummy.htm)
 * [Программирование на языке ассемблера NASM для ОС Unix](http://www.stolyarov.info/books/pdf/nasm_unix.pdf) (PDF)
 * [Микропроцессоры и вычислительные комплексы семейства "Эльбрус"](http://www.mcst.ru/doc/book_121130.pdf) (PDF)
@@ -129,7 +129,7 @@
 
 ### Git
 
-* [Pro Git](http://git-scm.com/book/ru)
+* [Pro Git](http://git-scm.com/book/ru/)
 * [Волшебство Git](http://www-cs-students.stanford.edu/~blynn/gitmagic/intl/ru/)
 * [Простое руководство по работе с Git](http://rogerdudler.github.io/git-guide/index.ru.html)
 
@@ -228,7 +228,7 @@
 
 * [Ruby за двадцать минут](https://www.ruby-lang.org/ru/documentation/quickstart/)
 * [Ruby](https://github.com/Krugloff/rus_ruby_book) - Круглов А.
-* [Ruby](http://ru.wikibooks.org/wiki/Ruby) - Викиучебник
+* [Ruby](https://ru.wikibooks.org/wiki/Ruby) - Викиучебник
 * [Учись программировать](http://www.shokhirev.com/mikhail/ruby/ltp/title.html) - Крис Пайн
 
 

free-programming-books-tr.md

@@ -82,7 +82,7 @@
 
 ### iOS
 
-* [iOS Geleceği Yazanlar](https://gelecegiyazanlar.turkcell.com.tr/konu/ios/)
+* [iOS Geleceği Yazanlar](https://gelecegiyazanlar.turkcell.com.tr/konu/ios)
 
 
 ### Java

free-programming-books-zh.md

@@ -64,11 +64,11 @@
 ### 在线教育
 
 * [CodeSchool](https://www.codeschool.com)
-* [Codecademy](http://www.codecademy.com/?locale_code=zh)
+* [Codecademy](https://www.codecademy.com/?locale_code=zh)
 * [Coursera](https://www.coursera.org/courses?orderby=upcoming&lngs=zh)
-* [Learn X in Y minutes](http://learnxinyminutes.com) (数十种语言快速入门教程)
+* [Learn X in Y minutes](https://learnxinyminutes.com/) (数十种语言快速入门教程)
 * [shiyanlou](https://www.shiyanlou.com)
-* [TeamTreeHouse](http://teamtreehouse.com)
+* [TeamTreeHouse](https://teamtreehouse.com/)
 * [Udacity](https://www.udacity.com)
 * [xuetangX](https://www.xuetangx.com)
 * [慕课网](http://www.imooc.com/course/list) (丰富的移动端开发、php开发、web前端、html5教程以及css3视频教程等课程资源)
@@ -93,14 +93,14 @@
 * [鸟哥的 Linux 私房菜 基础学习篇](http://vbird.dic.ksu.edu.tw/linux_basic/linux_basic.php)
 * [鸟哥的 Linux 私房菜 服务器架设篇](http://vbird.dic.ksu.edu.tw/linux_server/)
 * [开源世界旅行手册](http://i.linuxtoy.org/docs/guide/index.html)
-* [Linux 系统高级编程](http://sourceforge.net/apps/trac/elpi/wiki/ALP)
+* [Linux 系统高级编程](http://sourceforge.net/projects/elpi/)
 * [The Linux Command Line](http://billie66.github.io/TLCL/index.html) (中英文版)
 * [Linux 设备驱动](http://oss.org.cn/kernel-book/ldd3/index.html) (第三版)
 * [深入分析Linux内核源码](http://www.kerneltravel.net/kernel-book/%E6%B7%B1%E5%85%A5%E5%88%86%E6%9E%90Linux%E5%86%85%E6%A0%B8%E6%BA%90%E7%A0%81.html)
 * [Linux 构建指南](http://works.jinbuguo.com/lfs/lfs62/index.html)
 * [Linux工具快速教程](https://github.com/me115/linuxtools_rst)
-* [Linux Documentation (中文版)](http://tinylab.gitbooks.io/linux-doc)
-* [嵌入式 Linux 知识库 (eLinux.org 中文版)](http://tinylab.gitbooks.io/elinux)
+* [Linux Documentation (中文版)](https://www.gitbook.com/book/tinylab/linux-doc/details)
+* [嵌入式 Linux 知识库 (eLinux.org 中文版)](https://www.gitbook.com/book/tinylab/elinux/details)
 * [理解Linux进程](https://github.com/tobegit3hub/understand_linux_process)
 * [Operating Systems: Three Easy Pieces](http://pages.cs.wisc.edu/~remzi/OSTEP/)
 * [uCore Lab: Operating System Course in Tsinghua University](https://www.gitbook.com/book/objectkuan/ucore-docs/details)
@@ -108,7 +108,7 @@
 * [Docker —— 从入门到实践](https://github.com/yeasy/docker_practice)
 * [Docker入门实战](http://yuedu.baidu.com/ebook/d817967416fc700abb68fca1)
 * [FreeRADIUS新手入门](http://freeradius.akagi201.org)
-* [Mac 开发配置手册](http://aaaaaashu.gitbooks.io/mac-dev-setup/content/)
+* [Mac 开发配置手册](https://aaaaaashu.gitbooks.io/mac-dev-setup/content/)
 * [命令行的艺术](https://github.com/jlevy/the-art-of-command-line/blob/master/README-zh.md)
 
 
@@ -127,10 +127,10 @@
 * [猴子都能懂的GIT入门](http://backlogtool.com/git-guide/cn/)
 * [Git Magic](http://www-cs-students.stanford.edu/~blynn/gitmagic/intl/zh_cn/)
 * [GotGitHub](http://www.worldhello.net/gotgithub/index.html)
-* [Mercurial 使用教程](http://mercurial.selenic.com/wiki/ChineseTutorial)
+* [Mercurial 使用教程](https://www.mercurial-scm.org/wiki/ChineseTutorial)
 * [HgInit (中文版)](http://bucunzai.net/hginit/)
 * [Git-Cheat-Sheet](https://github.com/flyhigher139/Git-Cheat-Sheet) （感谢 @flyhigher139 翻译了中文版）
-* [GitHub秘籍](http://snowdream86.gitbooks.io/github-cheat-sheet/content/zh/index.html)
+* [GitHub秘籍](https://snowdream86.gitbooks.io/github-cheat-sheet/content/zh/index.html)
 * [Github帮助文档](https://github.com/waylau/github-help)
 * [git-flow 备忘清单](http://danielkummer.github.io/git-flow-cheatsheet/index.zh_CN.html)
 * [svn 手册](http://svnbook.red-bean.com/nightly/zh/index.html)
@@ -138,7 +138,7 @@
 
 ### 数据库
 
-* [Redis 设计与实现](http://www.redisbook.com)
+* [Redis 设计与实现](http://redisbook.com/)
 * [The Little MongoDB Book 中文版](https://github.com/justinyhuang/the-little-mongodb-book-cn)
 
 
@@ -149,7 +149,7 @@
 
 ### 智能系统
 
-* [一步步搭建物联网系统](https://github.com/gmszone/designiot)
+* [一步步搭建物联网系统](https://github.com/phodal/designiot)
 
 
 ### 分布式系统
@@ -190,9 +190,9 @@
 
 ### NoSQL
 
-* [NoSQL数据库笔谈](http://www.yankay.com/wp-content/NoSql_Database_Note.html) ([PDF](http://yankaycom-wordpress.stor.sinaapp.com/uploads/2012/12/NoSQL%E6%95%B0%E6%8D%AE%E5%BA%93%E7%AC%94%E8%B0%88v2.pdf))
+* [NoSQL数据库笔谈](http://yankaycom-wordpress.stor.sinaapp.com/NoSql_Database_Note.html?q=/wp-content/NoSql_Database_Note.html) ([PDF](http://yankaycom-wordpress.stor.sinaapp.com/uploads/2012/12/NoSQL%E6%95%B0%E6%8D%AE%E5%BA%93%E7%AC%94%E8%B0%88v2.pdf))
 * [Redis 设计与实现](http://redisbook.com)
-* [Redis 命令参考](http://www.redisdoc.com)
+* [Redis 命令参考](http://redisdoc.com/)
 * [带有详细注释的 Redis 3.0 代码](https://github.com/huangz1990/redis-3.0-annotated)
 * [带有详细注释的 Redis 2.6 代码](https://github.com/huangz1990/annotated_redis_source)
 * [The Little MongoDB Book](https://github.com/justinyhuang/the-little-mongodb-book-cn/blob/master/mongodb.md)
@@ -287,12 +287,12 @@
 * [程序员编程艺术](https://github.com/julycoding/The-Art-Of-Programming-by-July)
 * [每个程序员都应该了解的内存知识(译)](http://www.oschina.net/translate/what-every-programmer-should-know-about-memory-part1?print)【第一部分】
 * [取悦的工序：如何理解游戏](http://read.douban.com/ebook/4972883/) (豆瓣阅读，免费书籍)
-* [编程技巧总汇](http://xiaobeicn.gitbooks.io/programming-skills-summary/)
+* [编程技巧总汇](https://xiaobeicn.gitbooks.io/programming-skills-summary//)
 
 
 ### 其它
 
-* [OpenWrt智能、自动、透明翻墙路由器教程](http://softwaredownload.gitbooks.io/openwrt-fanqiang/)
+* [OpenWrt智能、自动、透明翻墙路由器教程](https://www.gitbook.com/book/softwaredownload/openwrt-fanqiang/details)
 * [SAN 管理入门系列](https://community.emc.com/docs/DOC-16067)
 * [Sketch 中文手册](http://sketchcn.com/sketch-chinese-user-manual.html#introduce)
 * [深入理解并行编程](http://ifeve.com/perfbook/)
@@ -303,7 +303,7 @@
 ### Android
 
 * [Android Design(中文版)](http://www.apkbus.com/design/index.html)
-* Google Material Design 正體中文版 ([译本一](http://wcc723.gitbooks.io/google_design_translate/content/style-icons.html) [译本二](https://github.com/1sters/material_design_zh))
+* Google Material Design 正體中文版 ([译本一](https://wcc723.gitbooks.io/google_design_translate/content/style-icons.html) [译本二](https://github.com/1sters/material_design_zh))
 * [Material Design 中文版](http://wiki.jikexueyuan.com/project/material-design/)
 * [Google Android官方培训课程中文版](http://hukai.me/android-training-course-in-chinese/index.html)
 * [Android学习之路](http://stormzhang.github.io/android/2014/07/07/learn-android-from-rookie/)
@@ -330,9 +330,9 @@
 
 * [C++ Template 进阶指南](https://github.com/wuye9036/CppTemplateTutorial)
 * [C++ 基础教程](http://www.prglab.com/cms/)
-* [C++ 并发编程指南](https://github.com/forhappy/A-Detailed-Cplusplus-Concurrency-Tutorial)
+* [C++ 并发编程指南](https://github.com/forhappy/Cplusplus-Concurrency-In-Practice)
 * [像计算机科学家一样思考（C++版)](http://www.ituring.com.cn/book/1203) (《How To Think Like a Computer Scientist: C++ Version》中文版)
-* [C 语言编程透视](http://tinylab.gitbooks.io/cbook)
+* [C 语言编程透视](https://www.gitbook.com/book/tinylab/cbook/details)
 * [CGDB中文手册](https://github.com/leeyiw/cgdb-manual-in-chinese)
 * [100个gdb小技巧](https://github.com/hellogcc/100-gdb-tips/blob/master/src/index.md)
 * [100个gcc小技巧](https://github.com/hellogcc/100-gcc-tips/blob/master/src/index.md)
@@ -345,7 +345,7 @@
 * [Cmake 实践](http://sewm.pku.edu.cn/src/paradise/reference/CMake%20Practice.pdf) (PDF版)
 * [C++ FAQ LITE(中文版)](http://www.sunistudio.com/cppfaq/)
 * [C++ Primer 5th Answers](https://github.com/Mooophy/Cpp-Primer)
-* [C++ 并发编程(基于C++11)](http://chenxiaowei.gitbooks.io/cpp_concurrency_in_action/)
+* [C++ 并发编程(基于C++11)](https://www.gitbook.com/book/chenxiaowei/cpp_concurrency_in_action/details)
 * [QT 教程](http://www.kuqin.com/qtdocument/tutorial.html)
 
 
@@ -402,7 +402,7 @@
 
 ### Haskell
 
-* [Haskell 趣学指南](http://learnyouahaskell-zh-tw.csie.org)
+* [Haskell 趣学指南](http://learnyoua.haskell.sg/)
 * [Real World Haskell 中文版](http://rwh.readthedocs.org/en/latest/)
 
 
@@ -481,11 +481,11 @@
   * [七天学会NodeJS](http://nqdeng.github.io/7-days-nodejs/)
   * [Nodejs Wiki Book](https://github.com/nodejs-tw/nodejs-wiki-book) (繁体中文)
   * [express.js 中文文档](http://expressjs.jser.us)
-  * [koa 中文文档](https://github.com/turingou/koa-guide)
+  * [koa 中文文档](https://github.com/guo-yu/koa-guide)
   * [使用 Express + MongoDB 搭建多人博客](https://github.com/nswbmw/N-blog)
   * [Express框架](http://javascript.ruanyifeng.com/nodejs/express.html)
   * [Node.js 包教不包会](https://github.com/alsotang/node-lessons)
-  * [Learn You The Node.js For Much Win! (中文版)](https://www.npmjs.org/package/learnyounode-zh-cn)
+  * [Learn You The Node.js For Much Win! (中文版)](https://www.npmjs.com/package/learnyounode-zh-cn)
   * [Node debug 三法三例](http://i5ting.github.io/node-debug-tutorial/)
   * [nodejs中文文档](https://www.gitbook.com/book/0532/nodejs/details)
 * underscore.js
@@ -546,9 +546,9 @@
 ### Markdown
 
 * [Markdown 快速入门](http://wowubuntu.com/markdown/basic.html)
-* [Markdown 简明教程](http://jianshu.io/p/7bd23251da0a)
+* [Markdown 简明教程](http://www.jianshu.com/p/7bd23251da0a)
 * [Markdown 语法说明](http://wowubuntu.com/markdown/)
-* [献给写作者的 Markdown 新手指南](http://jianshu.io/p/q81RER)
+* [献给写作者的 Markdown 新手指南](http://www.jianshu.com/p/q81RER)
 
 
 ### Node.js
@@ -571,7 +571,7 @@
 * [深入理解 PHP 内核](http://www.php-internals.com/book/)
 * [PHP5中文手册](http://php.net/manual/zh/)
 * [PHP扩展开发及内核应用](http://www.walu.cc/phpbook/preface.md)
-* [Symfony2 实例教程](http://wusuopu.gitbooks.io/symfony2_tutorial/content)
+* [Symfony2 实例教程](https://wusuopu.gitbooks.io/symfony2_tutorial/content)
 * [PHP 之道](http://wulijun.github.io/php-the-right-way/)
 
 
@@ -582,7 +582,7 @@
 * [Python 中文学习大本营](http://www.pythondoc.com)
 * [深入 Python](http://woodpecker.org.cn/diveintopython/)
 * [深入 Python 3](http://woodpecker.org.cn/diveintopython3/)
-* [笨办法学 Python](http://sebug.net/paper/books/LearnPythonTheHardWay/)
+* [笨办法学 Python](http://old.sebug.net/paper/books/LearnPythonTheHardWay/)
 * [简明 Python 教程](http://woodpecker.org.cn/abyteofpython_cn/chinese/) (《A Byte of Python》中文版)
 
 
@@ -605,7 +605,7 @@
 
 * [Rails 风格指南](https://github.com/JuanitoFatas/rails-style-guide/blob/master/README-zhCN.md)
 * [Ruby on Rails Tutorial 原书第 2 版](http://railstutorial-china.org)
-* [Ruby on Rails 实战圣经](http://ihower.tw/rails4/)
+* [Ruby on Rails 实战圣经](https://ihower.tw/rails4/)
 * [Ruby 风格指南](https://github.com/JuanitoFatas/ruby-style-guide/blob/master/README-zhCN.md)
 * [笨方法学 Ruby](http://lrthw.github.io)
 
@@ -620,7 +620,7 @@
 ### Scheme
 
 * [Scheme 入门教程](http://deathking.github.io/yast-cn/) (《Yet Another Scheme Tutorial》中文版)
-* [算法语言Scheme修订<sup>6</sup>报告](http://r6rs.mrliu.org)（R<sup>6</sup>RS简体中文翻译）
+* [算法语言Scheme修订<sup>6</sup>报告](https://r6rs.mrliu.org/)（R<sup>6</sup>RS简体中文翻译）
 
 
 ### Shell

free-programming-interactive-tutorials-en.md

@@ -55,7 +55,7 @@
 * [4Clojure - Koans](https://www.4clojure.com)
 * [Clojure Koans](http://clojurekoans.com)
 * [ClojureScript Koans](http://clojurescriptkoans.com)
-* [Try Clojure](http://tryclj.com)
+* [Try Clojure](http://www.tryclj.com)
 
 
 ### CoffeeScript
@@ -84,7 +84,7 @@
 ### Go
 
 * [Go Koans](https://github.com/cdarwin/go-koans)
-* [The Go Tutorial](http://golang.org/doc/go_tutorial.html)
+* [The Go Tutorial](http://tour.golang.org/)
 
 
 ### Haskell
@@ -96,24 +96,24 @@
 
 * [CSS Diner](http://flukeout.github.io)
 * [Flexbox Froggy](http://flexboxfroggy.com)
-* [Learn by doing beginner projects](https://dash.generalassemb.ly/projects)
-* [Learn HTML & CSS interactively](http://www.codecademy.com/tracks/web)
-* [Prototyping a professional website](http://www.codecademy.com/skills/prototyping)
+* [Learn by doing beginner projects](https://dash.generalassemb.ly/)
+* [Learn HTML & CSS interactively](https://www.codecademy.com/learn/web)
+* [Prototyping a professional website](https://www.codecademy.com/skills/make-a-website)
 
 
 ### Java
 
 * [CodingBat code practice](http://codingbat.com/java)
-* [Learneroo Java tutorial](http://www.learneroo.com/modules/11)
+* [Learneroo Java tutorial](https://www.learneroo.com/modules/11)
 * [Learn Java](http://www.learnjavaonline.org)
 
 
 ### JavaScript
 
 * [ABC of JavaScript : An Interactive JavaScript Tutorial](http://www.openjs.com/tutorials/basic_tutorial/)
-* [Codecademy jquery track](http://www.codecademy.com/tracks/jquery)
+* [Codecademy jquery track](https://www.codecademy.com/learn/jquery)
 * [Functional Programming in Javascript](https://github.com/ReactiveX/learnrx)
-* [Javascript interactive tutorial on CodeCademy](http://www.codecademy.com/tracks/javascript)
+* [Javascript interactive tutorial on CodeCademy](https://www.codecademy.com/learn/javascript)
 * [Javascript interactive tutorial on CoderMania](http://www.codermania.com/javascript/lesson/1a/hello-world)
 * [Javascripting](https://github.com/sethvincent/javascripting)
 * [Learning Advanced JavaScript](http://ejohn.org/apps/learn/)
@@ -146,7 +146,7 @@
 ### NoSQL
 
 * [MongoDB Koans](https://github.com/chicagoruby/MongoDB_Koans)
-* [Try MongoDB](http://try.mongodb.org)
+* [Try MongoDB](https://university.mongodb.com/)
 * [Try Redis](http://try.redis.io)
 
 
@@ -162,13 +162,13 @@
 
 ### PHP
 
-* [CodeCademy PHP](http://www.codecademy.com/tracks/php)
+* [CodeCademy PHP](https://www.codecademy.com/learn/php)
 * [Learn PHP](http://www.learn-php.org)
 
 
 ### Python
 
-* [Codecademy Python course](http://www.codecademy.com/tracks/python)
+* [Codecademy Python course](https://www.codecademy.com/learn/python)
 * [How to Think Like a Computer Scientist: Learning with Python, Interactive Edition](http://interactivepython.org/courselib/static/thinkcspy/index.html)
 * [Learn Python](http://www.learnpython.org)
 * [Python Koans](https://github.com/gregmalcolm/python_koans)
@@ -186,10 +186,10 @@
 
 ### Ruby
 
-* [CodeCademy Ruby](http://www.codecademy.com/tracks/ruby)
+* [CodeCademy Ruby](https://www.codecademy.com/learn/ruby)
 * [Codeschool Ruby paths](https://www.codeschool.com/paths/ruby)
 * [Ruby Koans](http://www.rubykoans.com)
-* [RubyMonk - Interactive Ruby tutorials](http://rubymonk.com)
+* [RubyMonk - Interactive Ruby tutorials](https://rubymonk.com/)
 * [The Odin Project](http://www.theodinproject.com)
 * [Try Ruby](http://tryruby.org)
 

javascript-frameworks-resources-pt_BR.md

@@ -55,12 +55,12 @@
 
 ### Meteor
 
-* [Tudo sobre Meteor](http://udgwebdev.com/meteor)
+* [Tudo sobre Meteor](http://udgwebdev.com/meteor/)
 
 
 ### Node.js
 
-* [Node.js para Leigos](http://udgwebdev.com/nodejs)
+* [Node.js para Leigos](http://udgwebdev.com/nodejs/)
 * [Primeiros passos com Node.js](http://tableless.com.br/o-que-nodejs-primeiros-passos-com-node-js/)
 * [Raspagem de dados com Node.js](http://tableless.com.br/raspagem-de-dados-com-node-js/)
 

javascript-frameworks-resources.md

@@ -3,34 +3,34 @@
 * [Angular Basics](http://www.angularjsbook.com)
 * [Angular for the jQuery developer](http://www.ng-newsletter.com/posts/angular-for-the-jquery-developer.html)
 * [Angular.js Cheat Sheet](http://www.cheatography.com/proloser/cheat-sheets/angularjs/)
-* [Angular.js Guide](http://docs.angularjs.org/guide/)
+* [Angular.js Guide](https://docs.angularjs.org/guide/)
 * [Angular.js Snippets for Sublime Text 2](https://github.com/maxhoffmann/angular-snippets)
-* [Angular.js Tutorial](http://docs.angularjs.org/tutorial)
+* [Angular.js Tutorial](https://docs.angularjs.org/tutorial)
 * [Angular.js Youtube Channel](https://www.youtube.com/angularjs)
 * [AngularJS - Extend your Browser](https://speakerdeck.com/petebd/devox-uk-2013-angularjs?slide=2)
-* [AngularJS - Step by Logical Step](http://nicholasjohnson.com/angular-book)
+* [AngularJS - Step by Logical Step](http://nicholasjohnson.com/angular-book/)
 * [AngularJS in 60 Minutes](http://fastandfluid.com/publicdownloads/AngularJSIn60MinutesIsh_DanWahlin_May2013.pdf) (PDF)
-* [AngularJS Insights](http://pascalprecht.github.com/slides/angularjs-insights/#/)
-* [AngularJS Succinctly](http://www.syncfusion.com/resources/techportal/ebooks/angularjs) (PDF, Kindle) *(Just fill the fields with any values)*
+* [AngularJS Insights](http://pascalprecht.github.io/slides/angularjs-insights/#/)
+* [AngularJS Succinctly](https://www.syncfusion.com/resources/techportal/ebooks/angularjs) (PDF, Kindle) *(Just fill the fields with any values)*
 * [AngularJs vs EmberJs](http://angularjs-emberjs-compare.bguiz.com)
 * [AngularJS with Ruby on Rails](http://angular-rails.com)
 * [egghead.io youtube channel: Learn AngularJS with Tutorial Videos & Training](https://www.youtube.com/user/johnlindquist)
-* [egghead.io: Learn AngularJS with Tutorial Videos & Training](http://egghead.io)
+* [egghead.io: Learn AngularJS with Tutorial Videos & Training](https://egghead.io/)
 * [Learn AngularJS with free interactive lessons](http://www.learn-angular.org)
-* [Mastering AngularJS Directives](http://pascalprecht.github.com/slides/mastering-angularjs-directives/)
+* [Mastering AngularJS Directives](http://pascalprecht.github.io/slides/mastering-angularjs-directives/)
 * [Recipes with Angular.js](https://leanpub.com/recipes-with-angular-js/read) *(Leanpub, by Frederik Dietz)*
-* [Seven-Part Introduction to Angular](http://ngokevin.com/blog/angular-1)
+* [Seven-Part Introduction to Angular](http://ngokevin.com/blog/angular-1/)
 * [Unit Testing Best Practices in AngularJS](http://andyshora.com/unit-testing-best-practices-angularjs.html)
 
 
 ## Backbone.js
 
-* [A Complete guide for learning Backbone.js](http://www.codebeerstartups.com/2012/12/a-complete-guide-for-learning-backbone-js/)
+* [A Complete guide for learning Backbone.js](http://codebeerstartups.com/2012/12/a-complete-guide-for-learning-backbone-js/)
 * [A pragmatic guide to Backbone.js apps](http://pragmatic-backbone.com)
 * [Backbone Tutorials: Beginner, Intermediate and Advanced](https://leanpub.com/backbonetutorials) - Thomas Davis
 * [Backbone.js + Require.js, Modularization and Just in Time Dependency Loading, part 1](http://developer.teradata.com/blog/jasonstrimpel/2011/12/part-1-backbone-js-require-js) [part 2](http://developer.teradata.com/blog/jasonstrimpel/2012/01/part-2-backbone-js-require-js-further-modularization-and-just-in-time-dep)
 * [Backbone.js and socket.io](http://developer.teradata.com/blog/jasonstrimpel/2011/11/backbone-js-and-socket-io)
-* [Backbonejs Tutorials](http://backbonetutorials.com)
+* [Backbonejs Tutorials](https://cdnjs.com/libraries/backbone.js/tutorials/)
 * [Building Single Page Web Apps with Backbone.js](https://singlepagebook.supportbee.com) (work in progress)
 * [Developing Backbone.js Applications](http://addyosmani.github.io/backbone-fundamentals/)
 * [Getting Started with Backbone.js](http://net.tutsplus.com/tutorials/javascript-ajax/getting-started-with-backbone-js/)
@@ -61,7 +61,7 @@
 * [AngularJs vs EmberJs](http://angularjs-emberjs-compare.bguiz.com)
 * [DockYard Ember.js Style Guide](https://github.com/dockyard/styleguides/blob/master/ember.md)
 * [Ember 101](http://ember101.com)
-* [Ember App with RailsApi](http://reefpoints.dockyard.com/ember/2013/01/07/building-an-ember-app-with-rails-api-part-1.html)
+* [Ember App with RailsApi](https://dockyard.com/blog/ember/2013/01/07/building-an-ember-app-with-rails-api-part-1)
 * [Ember.js - Getting started](http://emberjs.com/guides/getting-started/)
 * [EmberFlare](https://emberflare.com)
 * [Vic Ramon's Ember Tutorial](http://ember.vicramon.com)
@@ -74,14 +74,14 @@
 
 ## jQuery
 
-* [JavaScript Fundamentals, Plus a Dash Of JQuery - for dinner ladies](http://nicholasjohnson.com/javascript-book)
+* [JavaScript Fundamentals, Plus a Dash Of JQuery - for dinner ladies](http://nicholasjohnson.com/javascript-book/)
 * [jQuery Novice to Ninja](http://mediatheque.cite-musique.fr/MediaComposite/Debug/Dossier-Orchestre/ressources/jQuery.Novice.to.Ninja.2nd.Edition.pdf) (PDF)
-* [jQuery Succinctly, Syncfusion](http://www.syncfusion.com/resources/techportal/ebooks/jquery) (PDF, Kindle) *(Just fill the fields with any values)*
+* [jQuery Succinctly, Syncfusion](https://www.syncfusion.com/resources/techportal/ebooks/jquery) (PDF, Kindle) *(Just fill the fields with any values)*
 
 
 ## Knockout.js
 
-* [Knockout.js Succinctly](http://www.syncfusion.com/resources/techportal/ebooks/knockoutjs) (PDF, Kindle) *(Just fill the fields with any values)*
+* [Knockout.js Succinctly](https://www.syncfusion.com/resources/techportal/ebooks/knockoutjs) (PDF, Kindle) *(Just fill the fields with any values)*
 * tech.pro: Knockout.js tutorial video series
   * [Lesson 1 - Introduction](http://tech.pro/tutorial/1562/knockoutjs-lesson-1-introduction)
   * [Lesson 2 - Initialising the application](http://tech.pro/tutorial/1563/knockoutjs-lesson-2-initialising-the-application)
@@ -114,7 +114,7 @@
 * [React Tutorial](https://facebook.github.io/react/docs/tutorial.html)
 * [React with ASP.NET 5 Tutorial](http://reactjs.net/getting-started/aspnet5.html)
 * [React.js tutorial - Creating components](http://ghost.stevenisekimart.in/react-js-tutorial-creating-components)
-* [React.js Tutorial: Now is Your Time to Try It, Right in Your Browser](https://codegeekz.com/react-js-tutorial)
+* [React.js Tutorial: Now is Your Time to Try It, Right in Your Browser](https://codegeekz.com/react-js-tutorial/)
 * React Tutorial by Josh Finnie
   * [Part 1](http://www.joshfinnie.com/blog/reactjs-tutorial-part-1/)
   * [Part 2](http://www.joshfinnie.com/blog/reactjs-tutorial-part-2/)

problem-sets-competitive-programming.md

@@ -8,18 +8,18 @@
 
 * [4Clojure](http://www.4clojure.com)
 * [Codeabbey](http://www.codeabbey.com)
-* [Codechef](http://www.codechef.com/contests)
+* [Codechef](https://www.codechef.com/contests)
 * [Codeeval](https://www.codeeval.com)
 * [Codeforces](http://codeforces.com)
-* [Coderbyte](http://coderbyte.com)
-* [Codewars](https://www.codewars.com)
-* [Codingame](http://www.codingame.com/start)
+* [Coderbyte](https://coderbyte.com/)
+* [Codewars](http://www.codewars.com/)
+* [Codingame](https://www.codingame.com/start)
 * [Facebook Hackercup](https://www.facebook.com/hackercup)
 * [Hackerrank](https://www.hackerrank.com)
 * [Hello World Open](https://helloworldopen.com)
 * [Internet Problem Solving Contest](http://ipsc.ksp.sk)
 * [Just another Golf Coding](http://jagc.org)
-* [Microcorruption](https://microcorruption.com)
+* [Microcorruption](https://microcorruption.com/login)
 * [Saratov State University](http://acm.sgu.ru/index.php)
 * [Topcoder](https://www.topcoder.com)
 
@@ -41,13 +41,13 @@
 * [Mathproblem of the Month - Bilkent University](http://www.fen.bilkent.edu.tr/~cvmath/prob-month.html)
 * [PEG Judge](http://wcipeg.com)
 * [PKU Online Judge](http://poj.org)
-* [Ponder This!](http://domino.research.ibm.com/Comm/wwwr_ponder.nsf/pages/index.html)
+* [Ponder This!](https://www.research.ibm.com/haifa/ponderthis/index.shtml)
 * [ProblemBook.NET](http://problembook.net/content/en/index.html)
 * [Project Euler](https://projecteuler.net)
 * [Python Practice Projects](http://pythonpracticeprojects.com)
 * [Rosalind](http://rosalind.info/problems/locations/)
 * [Sphere Online Judge](http://www.spoj.com)
-* [TalentBuddy](http://www.talentbuddy.co)
+* [TalentBuddy](http://www.talentbuddy.co/blog/)
 * [Timus Online Judge](http://acm.timus.ru)
 * [URI Online Judge](https://www.urionlinejudge.com.br/judge/login)
-* [UVa Online Judge](http://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8)
+* [UVa Online Judge](https://uva.onlinejudge.org/index.php?Itemid=8&option=com_onlinejudge)