Natural language processing / Tool Kit / PPT

http://en.wikipedia.org/wiki/Natural_language_processing
http://www.nltk.org/
http://www.cse.unt.edu/~rada/CSCE5290/

How To Improve Programming Skills / Puzzles

http://c2.com/cgi/wiki?HowToImproveProgrammingSkills


http://sixrevisions.com/resources/10-puzzle-websites-to-sharpen-your-programming-skills/
http://melbel.hubpages.com/hub/Programming-Challenges