Aikido Online
Aikido online reflects the teachings of perhaps the most prominent group of aikido shihan (master teachers) living outside japan today.
http://www.aikidoonline.com/
Go Taekwondo
Gotaekwondo.com is the leading taekwondo website in the world! taekwondo information, links, discussions, dojangs, and much, much more!
http://www.gotaekwondo.com/
International Sumo Federation
International Sumo Federation
http://amateursumo.com/