Panfu - Panfu is really a virtual world focusing on kids aged between 5 and 14.
Neopets - Neopets is an Amazing, Virtual World, Massively Multiplayer Online, Role-playing and Fantasy-based video game developed and published by Viacom.
Star Stable - Star Stable is a Massively Multiplayer Online, Virtual Horse, Fantasy and Browser-based Simulation developed by Star Stable Entertainment AB.
Poptropica - Poptropica, a virtual world for kids to travel, play games, compete in head-to-head competition, and communicate safely. Kids can also read books, comics, and see movie clips while they play.
Animal Jam - Animal Jam is really a virtual world for kids that includes real animal and plant information towards fun storylines which are maintained by National Geographic educational content.
WeeWorld - WeeWorld - the social network built for fun where you can meet new friends, send messages, play...