On Youtube.
I think you can watch that on YouTube.
Pokemon episode.org
avatarchapters.org
If you have Netflix then just watch it there.
On Youtube.
youtube maybe even google !
It can be found on anime websites,especially sites that only has dubbed(english) animes.
Watch full episodes of Legend of The ASeeker online on http://www.gtv33.com
on YouTube
digavatar.com lets you watch all the episodes for free and without a time limit. You can watch it on nicktoons or anime sites. The dubbed,(english only), sites should have the cartoon.
Haibane Renmei , Battle Angel Alita , Angel Sanctuary OVA , Angel's Feather OVA , Angel Tales , Angel Tales 2 , Aquarion , Ayashi no Ceres , Ceres : Celestial Legend , Disgaea , Happy World! OVA , Kamisama Kazoku , Koutetsu Tenshi Kurumi Zero OVA , Makai Senki Disgaea , Pita Ten , Saint Beast , Saint Beast : Ikusen no Hiru to Yoru Hen OVA , Saint Beast: Kouin Jojishi Tenshitan , Sousei no Aquarion , Sousei no Aquarion OVA , Steel Angel Kurumi Zero OVA , Tenshi Kinryoku OVA , Tenshi no Shippo and Tenshi no Shippo Chu!
No there is not a English dub sorry,but you can watch with English subs. As a matter of fact, there IS going to be an official dub pretty soon. http://www.youtube.com/watch?v=XA_j4Dmor9w I'm not all that obsessed or fond of the dub, but being a fan for it since...2008 or before maybe? I still have faith.
The Legend of Korra can be watched legally on Amazon and Hulu Plus.
NO
Dramafever.com and/or Dramacrazy.net
You can probably watch it on YouTube.