halo.bungie.org:Community site with the latest news, forums, comics, fan art, Bungie exclusives.
Everything Halo: Forums for glitching and general gameplay.
Grunty Thirst Corporation: Offers custom avatars and banners.
Halo Everything: Descriptions of the series including weapons and screen shots. Also descriptions of novels set in the Halo universe.
Halo Llamas: Offers flash games, streaming movies and a guestbook.
Halo Mods: A resource for modifying both the PC and Xbox versions. Also includes; forums, tutorials, map reviews and news.
Halo News from Rampancy: News for Xbox as well as Macintosh and Windows computers.
Halo Tips: Tips and unlockable content.
Halo Universe: Discussion forums, news, and Java chat
HaloBB: Forums for singleplayer, multiplayer and technical support.
HaloChat: Offers forums, chat, and news.
HaloDev Forums: Forums on various aspects of modding.
HaloFiles.com: News, mods, maps, patches and other files and articles for the series.
HaloPlanet: Fan site with news, game information, and forums.
Last of the Spartans: Fan art and comic.
Mission Halo: Offers walkthroughs, guides, image galleries, videos, and forums.
Pillar of Autumn: Fan site featuring images, characters, tips and hints.
Sector 7 - Halo: Featuring news, downloads, articles, and image galleries.
The Carnage Zone: Web comic and fan fiction.
The Maw: A news summary site.
The Seventh Column: Bungie's community of fan-created websites.