StackOverflow has helped me a metric ton in the past - when I searched for something on Google, the stackoverflow results usually were among the best. So I decided I'd try to give something back.
Thank you all for supporting this community!
Q&A for professional and enthusiast programmers
Q&A for ebook publishers and readers
Q&A for user experience researchers and experts
Q&A for meta-discussion of the Stack Exchange family of Q&A websites
Q&A for expert genealogists and people interested in genealogy or family history