Want to blow your mind?  Go to ChatRoulette.com.  It's an incredibly simple concept: the site randomly pairs you with someone else for a one-on-one video chat.  You can talk or you can make faces at one another or you can pass and move onto someone new.  Though you're destined to run into a few... ahem... exhibitionists we'll call them, you also might meet people going to a Batman Villain party in Iceland.  Or a kind fellow from Brazil.  Or a Goth Princess from Croatia.  There are so many fascinating things about the site to discuss on a societal and theoretical level, but it's also just fun.  Go on, give it a spin.