Giants - Citizen Kabuto

AltoGames - http://www.altogames.com/g/giants-citizen-kabuto/index.html
Contains screenshots and wallpaper.

Giants Map Manager - http://www.geocities.com/soulbrains/GMM/
Download of utility to play multiplayer games on custom maps.

Giants X-Treme - http://www.olympus-studios.biz/giantsxtreme/intro.html
Features news, giants' history, cheats, downloads including skins, tools, and maps, and forum.

Kabuto Online - http://www.3dactionplanet.com/giants/
Offers daily news, strategies, tactics, game information, and cheats and hints.

Loop Goose Giants Skies - http://www.geocities.com/loop_goose/
Includes downloads of music and background skies.

Vimp Meat - http://www.keph.ca/giants/
Contains server information and news.