Craigslist

Q: What is craigslist? A: Local classifieds and forums - community moderated, and largely free.

Q: What can I find there? A: Jobs, housing, goods, services, romance, local activities, advice - just about anything really.

Q: What is the origin of craigslist? A: An email list of SF events started by Craig Newmark in 1995.

http://www.craigslist.org/