Enter the Ninja
Information on various aspects of ninja discipline including on training, weapons, and kuji-in. On-line media files are available. Features video games, movies and books based on the ninja.
http://www.entertheninja.com/

Hoshin Roshi Ryu Imazuma Dojo
The Official Home Page of Hoshinjutsu Roshi Ryu. The site features information about the school as well as curriculum and photo album.
http://www.freewebs.com/hoshinjutsu/

Long Island Ninjutsu Centers
Martial Arts school offering Ninjutsu and Jujutsu. The site also offers information about the dojo, forum, photo gallery, articles, and an online shop.
http://www.lininja.com/

Ninjutsu Stuff
A web site geared toward the practitioners of ninjutsu, particularity those Bujinkan. It offers information about classical and modern ninjutsu from the Bujinkan point of view.
http://www.freewebs.com/ninjutsustuff/

Ninpeden Dojo
Offering training in the Genbukan Ninpo Bugei and Kokusai Jujutsu Renmai tradition, with schools in Elizabeth and Parker, Colorado.
http://www.ninpiden.com

Ninpo Taijutsu
The site represent a dojo teaching traditional Japanese samurai and ninja martial arts. The dojo is located in the UK.
http://www.ninpo-taijutsu.co.uk

Ninpo-Ikkan
General information about Bujinkan Budo Taijutsu. including the nine schools, links, stories and history.
http://www.geocities.com/remipulwer/index2.html

The Art of Ninjutsu
History and information about the art of the ninja. Features weapons, movies, schools, gallery, links and general information.
http://www.geocities.com/the_ninjutsu/welcome.html