There used to be a cool chat application Odigo I think, where you could search for random people based on Location. I used to practice my Spanish with people on that.
wow, I never though I'd come across a casual reference to Odigo on the internet (and it isn't from me). Gosh I loved Odigo -- met so many people that I eventually lost contact with. You could even talk to other people browsing the same website as you (interesting, of course, because I wasn't on any social networks -- mostly forums and metal websites).