Webkinz

http://www.nytimes.com/2007/03/26/technology/26ecom.html?ex=1181448000&en=63f4129165b94f6c&ei=5070

http://us.cyworld.com/

Club pengui

It's not just a silly virtual world. It's not just a silly virtual world for little kids. It's a silly virtual world for kids that's overrun with penguins. You can stop laughing now, it just sold for $700 Million.