On: Resignation letter from Microsoft Employee

[jcl]

There are a variety of problem-solving sites you can practice on, if that's the sort of thing you're looking for...

http://codekata.pragprog.com/2007/01/code_kata_backg.html#

http://projecteuler.net/

http://www.spoj.pl/tutorials/

http://programmingpraxis.com/