Livemocha

Do you know Livemocha? (livemocha.com) 

Livemocha is a commercial online language learning community, providing instructional materials in 38 languages and a platform for speakers to interact with and help each other learn new languages. According to the site, it has approximately 12 million registered members from 196 countries around the globe (although this claim includes members who have signed up for 1 day and never returned). Over 400,000 users visit the site daily.

Livemocha is committed to creating a world in which every human being is fluent in multiple languages.