Budo Kai
Dedicated to researching, preserving, and disseminating information of classical Japanese-style martial arts. Membership details, gallery, news and links. Located in Aurora, Illinois.
http://www.e-budokai.com/

E-Budo.com
A forum for Japanese martial arts and culture.
http://www.e-budo.com/

Furyu Online
Journal of classical Japanese martial arts (budo) and culture.
http://www.furyu.com

Ketsu Kyoudai
Contains some thoughts on Bushido and the Samurai code of ethics.
http://www.ketsu-kyoudai.de