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@@ -227,7 +227,6 @@
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* [Bitsavers.org](http://bitsavers.trailing-edge.com)
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* [Bookboon: IT & Programming](http://bookboon.com/en/it-programming-ebooks) Cookie required. (email address *requested*, not required)
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* [Cheat Sheets (Free)](https://dzone.com/refcardz)
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-* [Codingus](http://codingus.blogspot.in)
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* [conceptf1.blogspot.com](http://conceptf1.blogspot.com/2013/11/list-of-freely-available-programming.html)
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* [Free Smalltalk Books, collected by Stéphane Ducasse](http://stephane.ducasse.free.fr/FreeBooks.html)
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* [Free Tech Books](http://www.freetechbooks.com)
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@@ -683,7 +682,6 @@ Kerridge (PDF) (email address *requested*, not required)
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#### Regular Expressions
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-* [Learn Regex The Hard Way](http://regex.learncodethehardway.org/book/) - Zed. A. Shaw
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* [RexEgg](http://www.rexegg.com)
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* [The 30 Minute Regex Tutorial](http://www.codeproject.com/Articles/9099/The-Minute-Regex-Tutorial) - Jim Hollenhorst
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* [The Bastards Book of Regular Expressions: Finding Patterns in Everyday Text](https://leanpub.com/bastards-regexes) - Dan Nguyen *(Leanpub account or valid email requested)*
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Charlotte Tan