Pay-as-you-go world with users of all ages is a risky bet.
Parents need to know that this vast virtual world is integrated onto all of the major social networks -- Facebook, MySpace, Friendster, and Bebo -- so users can import all of their contacts into the game and meet up with them. The site lets users design an avatar, build a home, play games with friends, and chat. To succeed, you have to buy credits with real cash or play a lot to earn points -- or both.