5 links
Mana Sanctuary
freewebs.com
Covers Sword of Mana (GBA) only. Offers links, screen shots, wallpapers, music download, character profiles, and movies.
Power of Mana
geocities.com
Information on weapons, magic, and walkthroughs available for Secret of Mana, and Seiken Densetsu 3.
The Seikens
seikens.com
Provides information, guides, media, news, and articles related to the series.