When you need a new roommate to help cover half the costs of your midtown (or uptown or downtown) studio – because your previous roommate decided to skip out on the lease early to “find” himself somewherein Sumatra – Craigslist is likely the first place you look.

But Craigslist’s network of online communities isn’t limited to helping you hunt down your next live-in archenemy. The global Web site allows you to buy, sell and search for almost anything you can think of – goods, services, jobs, dates – just enter a word, and Craigslist is on the case.