Metroid

CE's Metroid
Offers story, description of areas with maps, combat hints, enemies, items, weapons, and artwork.
http://www.algonet.se/~longbow/metroid/

GameWinners.com
Contains hints, cheat and Game Genie codes, walkthrough, controls, item list, enemies, and maps.
http://www.gamewinners.com/nes/Metroid.htm

Metroid Classic
PC port. Includes news, forum, FAQ and demonstration version download.
http://www.metroidclassic.com/

Metroid Plaza
Offers strategy guide and fan fiction.
http://www.freewebs.com/metroidplaza/

Planet Zebes
Offers introduction to game, story, character profile, creature database, maps, tips, gallery, and forum.
http://www.nintendoland.com/zebes/