What sign up games are there for kids

A game for kids (a small list) are:

Club Penguin:(http://www.clubpenguin.com/)
A nice 2D game where kids can meet others in the form of a penguin. Available in click-chat or regular typing chat. You can dress up your penguin with items you can either unlock or buy with in-game money (To buy in game items you must pay a monthly fee to become a member).

Kidscom: (http://www.kidscom.com/)
Some sort of fun safe kids chat room and fun games for kids.

Neopets:(http://www.neopets.com/)
An addicting game I used to play as a kid where you can get a virtual pet and buy clothes with in-game money you don't have to buy to dress up yours 'friend' and play awesome games and save up to get more stuff. Kind of like a tycoon but with games.

Freerealms:(http://www.freerealms.com/)
A cool 3D game where you can become many different jobs and customize your avatar in anyway you please with clothes and items you buy with in-game money. Fun with many minigames. (Download Required)

Hope I helped :D