If you haven't heard of Chat Roulette, then chances are you live under a rock or just haven't had that much time to use the Internet. Put simply, it's a place you go in order to see people in a webcam chat environment, although it's 100% free to use and anyone can start streaming without creating an account.
It's never really used by camgirls, and most of the people who go on there aren't looking for sex, but there are a few people that realize cam to cam software with strangers can lead to a really, really erotic time. Hopefully you'll find a slutty stranger that is more than willing to get naked on cam and share a great experience with you via Chat Roulette. Don't head on over expecting to see scores of really hot sluts offering their bodies for free though: there's a good chance you'll see 10 fat hairy dudes jerking off before even catching a whiff of a hot woman.