Affiliates
Trigger Happy is an Avatar: The Last Airbender graphics fansite. The site offers lots of graphics, layouts, png's and much more! In my opinion, it is one of the best fansites out there! Updates are done regularly and it is one of the best places to go for coding and layout advice.
Avatars-Hangout has been around for ages! It is also one of the greats, among Avatar fansites! The site focuses on avatars and sigs, which are done to a high quality and new additions are made regularly. So visit now!
Team Genocide is a community site - which includes a forum. It is a UK based gaming team, primarily focused on rhythm games such as Dance Dance Revolution and In The Groove. You don't have to be a DDR fan or a gamer to join. Feel free to just stop by or sign up and have a chat. If you're lucky you'll probably catch me there.
The Avatar Portal is great for people who have just been introduced to the Avatar World and need a little education. Alternatively, it is a great place for people who need a refresher course (like me). The site contains: a full cast / staff list, concept art and screen captures.
Blue Spirit Gal (BSG) has a little something for everyone including fanfiction, artwork/graphics, Avatar music videos, episodes guides, information on the series, and even a kid's corner with puzzles and online games! BSG is a family-orientated site, so you will find something whether your 5 or 95 yrs old.
Lointeresante is a Spanish forum, stocked full of interactive features. The forum is manually coded and includes a tagboard, chat box and fully-functioning forum. There are loads of threads to talk about anything from video games to sports. Of course, the only disadvantage is - I hope you can speak Spanish.