is a social networking tool.. For your avatar. The interface is the standard social networking theme except it doesn't have people spamming you annoying applications (facebook). You can add characters from different games and start a family tree, invite friends and import avatar stats from the games sites (a lot of games are supported).
Signing up is quite possibly the nerdiest thing you'll ever do, I have created the Penny Arcade
group already and its public so anyone can join.
This OP fails