Here are other anime sites you can visit:

Official Site: Nick .com-
The official site (for Avatar and other Nicktoons). Games, E-cards, Wallpapers, and message boards!
Toph Bei Fong fan-listing-
A fan-listing to my favorite character! (um, I cannot go to this right now. just to warn you)

Avatar Spirit-
Has info on upcoming episodes, forums, oekaki, and screen-shots, plus more!
Distant Horizon-
Oekaki, forums, lots of stuff! Cool!!!

Aang's Almanac-
This used to be a wetpaint site. Chat rooms, all episodes, and more!AFFILIATE:.
Avatar the Last Airbender-
Gum12's Awesome wetpaint site with a forum
Toonami Jetstream
Watch Naruto, Pokemon, and other anime!

Official Site: Cartoon Network
Info on Pokemon and Naruto, plus other CN cartoons.
Official Site: Pokemon.com
Stuff on Pokemon and the Games.
Official Site: Naruto.com-
Viz Media's official website for the ninja from the leaf village.