Popularity of the social networks

The graph mentioned recently published in "Le Monde" gives an overview of the popular social networking Internet sites by continent. Bebo in Europe would be the most popular social networking Internet site ( I have my doubts on this one ). Netlog, which operates from Belgium, already stands on the fifth place in Europe !

Talking about networks. I found this website with new visualisations of networks.
Some are already known, but there are some new ones too !