Might and Magic 8 - Day of the Destroyer

The Dark Dragon's RPG Cavern
Offers maps, trainer locations, travel schedule, item and NPC lists.
http://rivendell.fortunecity.com/moria/820/mm8page.htm

Destroyed Domain
Features maps, quest descriptions, party generation advice, trainer locations, item lists, and bug reports.
http://www.pottsland.com/mm8/main.shtml

The Erathian Liberation Party
Offers message board, game help, game library, maps, screen shots and links.
http://telp.org/mm8/

The League of Might & Magic
Offers game help, maps, screen shots, humor, character editor and links.
http://www.angelfire.com/games/mm8/

MM Worlds
Offers maps and starter tips.
http://www.rpgplanet.com/mightandmagic/pages/MM6-9/MM8/MM8.html

Universal Hint System
Contains gradual hints presented in question and answer format.
http://www.uhs-hints.com/uhsweb/mm8.php