How about that Chatroulette everyone is talking about? I tried it out today, it's exactly what you would expect. I've found that it's a lot better to turn it on and ignore it, and wait for someone to engage you than to try to expend effort trying to engage someone else.
Also, it's mostly white dudes. And why is it that there are tons and tons of guys showing penises, but almost no girls showing anything? Why is that?