Singapore Judo Federation
http://www.singaporejudo.org.sg/links.htm


Forzara Judo Club
http://www.judoforzara.org.sg/index.htm


International Judo Federation
http://www.ijf.org/index.php


Kodokan Judo Institute
http://www.kodokan.org/


Wikipedia
http://en.wikipedia.org/wiki/Judo