avatar-videos.com or youtube
If you want to watch it online then http://www.surfthechannel.com/ is a good place.
Avatar's page on Nick.com.
You can watch all the Avatar episodes on Nickelodeon
If you mean who is the last air bender then its Aang from Avatar The last Air bender or Avatar the legend of Aang
Avatar's page on Nick.com. It's under "episode guide."
You can see it on Nickelodeon, or view it online.
Hulu has some full episodes. However if you already have a Netflix acount you can watch instant episodes there too.
Yes. But actually, it will be called "Legend of Korra". It is based on the next avatar which is,as you know from avatar the last bender, a water bender 70 years after the time period of "Avatar the Last Airbender".
Yes. You can watch on NickToons.
well, actually it already aired. you can watch it online in you tube. You can also watch it on anime sites like dubhappy.com and animfreak.tv
The only place you can watch Avatar: The Last Airbender online is on YouTube (youtube.com)
One can watch the "Avatar The Last Airbender" series from many online streaming websites that show cartoons. Some examples include Watch Cartoon Online and AnimeHere.
Avatar: The last air-bender movie 1 came out on June 30, 2010.