Live Mocha is probably the social networking site I personally like the most, but not for it's social networking aspect. I love it because it's main goal is to teach you another language, and it works.
The language lessons on Live Mocha are so simple, even I can learn from them. Spanish was the only class I ever had problems with in college, using Live Mocha I'm finally learning it. I even have my son learning from Live Mocha.
The social networking aspect of Live Mocha is also fabulous. You can converse with people from around the world. Speak with people who want to learn your language while speaking to people who speak the language you want to learn. You'll both benefit.
