I really like StackOverflow, and I want to contribute to it's community. I especially like editing and reviewing posts to keep this site clean and easy readable.
I'm one of those people who barely asks questions on this site an I'm convinced that the amount of questions asked here can be reduced by 90% if users would actually use Google (which is usually just a matter of correct phrasing of the problem).
Google is your best friend!
Q&A for professional and enthusiast programmers
Q&A for meta-discussion of the Stack Exchange family of Q&A websites