Medieval and Premodern Japan
Ancient Japan includes culture, history, maps, and links.
Bujin Newsletter article on Japanese Sword Development
Koryu.com has some great articles and info about classical martial arts in Japan. Includes Kashima Shinryu, taught by Dr. Karl Friday at UGA.
Kashima Shinryu - North America website.
Richard Stein's Japanese Sword Index
Some Links to Japanese History