3 links
Encyclopedia Mythica: Arthurian Legend
pantheon.org
Provides a short introduction to the myths that surround the man.
King Arthur
caerleon.net
The village of Caerleon, fabled to be the location of King Arthur's Camelot, explores a few of the legends associated with him.
King Arthur: A Man for the Ages
geocities.com
Explores King Arthur in history, in legend, in literature, and on land.