Grunty Thirst Corporation
   Offers custom avatars and banners.
   http://www.freewebs.com/gruntythirst2/

Halo Everything
   Descriptions of the series including weapons and screen shots. Also descriptions of novels set in the Halo universe.
   http://cloakboy0.tripod.com/

Halo Factor
   Video tutorials and tricks. Also a forum.
   http://www.halofactor.co.uk/

Halo Mods
   A resource for modifying both the PC and Xbox versions. Also includes; forums, tutorials, map reviews and news.
   http://www.halomods.com

Halo News from Rampancy
   News for Xbox as well as Macintosh and Windows computers.
   http://halo.rampancy.net

Halo Tips
   Tips and unlockable content.
   http://www.freewebs.com/halotips101/

Halo-HQ
   Includes videos, pictures, and fan fiction.
   http://www.halo-hq.com/

HaloChat
   Offers forums, chat, and news.
   http://halochat.edgegaming.com/

HaloDev Forums
   Forums on various aspects of modding.
   http://forums.halodev.org/

HaloFiles.com
   News, mods, maps, patches and other files and articles for the series.
   http://www.halofiles.com/

HaloPlanet
   Fan site with news, game information, and forums.
   http://www.haloplanet.com/

Last of the Spartans
   Fan art and comic.
   http://www.freewebs.com/lastofthespartan/

Pillar of Autumn
   Fan site featuring images, characters, tips and hints.
   http://hometown.aol.com/MasterCHeif419/MainPage.html

Sigma Octanus IV
   News, reviews, links, wallpapers, FAQs, screen shots, and book reviews.
   http://octanus.forerunners.org/

Sigs by Maverick
   Designs signature banners.
   http://www.freewebs.com/sigsbymaverick/

The Carnage Zone
   Web comic and fan fiction.
   http://www.freewebs.com/carnagezone/

The Maw
   A news summary site.
   http://halo.blackice.ie/

The Seventh Column
   Bungie's community of fan-created websites.
   http://www.bungie.net/7thColumn/

iBonk
   Offers numerous movies and several discussion forums.
   http://haloib.com/