A nice glossary of Sumo Terms:  http://www.sumoforum.net/glossary.html

Gunga's Recommended Sumo Links:

The Official Nihon Sumo Kyokai Grand Sumo Homepage:
http://www.sumo.or.jp/eng/

SumoNow!
http://www.sumonow.net/index.htm

Sumo Fan Magazine:
http://www.sumofanmag.com/

SumoForumNet:
http://www.sumoforum.net/forums/index.php?

Sumo Mailing List member’s page:
http://home.earthlink.net/~dgoddard2/

Videos, Banzukes, Artwork, and SML archives:
http://www.banzuke.com/

Audio Banzuke, pictures:
http://www.dichne.com/

Bandy’s Hungarian Sumo site:
http://www.szumo.hu/SZUMOE.HTM

Stefan Gelow’s Sumo page:
http://w1.858.telia.com/%7Eu85811045/

Leonishiki’s Sumo room:
http://usuarios.lycos.es/leonishiki/

Lynn Matsuoka’s Sumo art:
http://www.traditions.jp/

Hakke yoi!:
http://www.hakkeyoi.net/

Sumotalk:
http://www.sumotalk.com/