
Programming
Regular-Expressions.info - Regex Tutorial, Examples and Reference - Regexp Patterns
Sphere Online Judge (SPOJ)
Free Computer, Programming, Mathematics, Technical Books, Lecture Notes and Tutorials
Free Programming Books
codepad
Codecademy Labs
Game From Scratch C++ and SFML Edition!
Want to create a game using C++ and SFML?
30 free programming eBooks - citizen428.blog()
Since this post got quite popular I decided to incorporate some of the excellent suggestions posted in the comments, so this list now has more than 50 books in it. BTW : I’m not very strict on the definition of “ebook”, some of them are really just HTML versions of books. [ UPDATED : 2012-01-18] Learning a new programming language always is fun and there are many great books legally available for free online.
The Language Guide
Free Programming Resources

