Doomworld -  .

Bejiitas Wrath - - Personal site with add-on downloads and tips.

ClassicDOOM.com - - Walkthroughs and guides, game comparisons, passwords, and links, for all versions.

Doom ][ Control Centre - - Frontend launcher; screenshots and download available.

Doom 3 Forums - - Discussion about all versions of the game.

Doom Connector - - Service for setting up multiplayer games.

Doom Gamer - - Information, discussion and downloads, for classic Doom and Doom 3.

The Doom II Room - - Original levels and a getting started guide to editing. Also a favourite WADs list.

Doom Underground - - Help for beginners. Also collected add-ons, utilities and FAQs.

Doom Wiki - - Community knowledge base, including game information, trivia, technical articles, strategy guides, information about WADs, and editing tutorials.

Doom3.co.uk - - Includes game information, guides, FAQ, and media for each game.

Doomers Domain - - News, forums, and downloads.

DoomGate - - Home of the FAQs for the news groups, the Official Doom FAQ, and some editing guides. Also home to the idgames archive which contains large numbers of add-ons and editing utilities.

exl - - Personal site with new levels and utilities - including WhackEd.

Greensting's - - Deathmatch help and tips, and links to popular servers, clans, skins, and levels.

Lee Killough's Doom Page - - History, trivia and technical information. Includes pre-launch press releases and public alpha and beta releases.

Limp Gimps - - ZDaemon clan. With forums, screenshots, and a selection of levels and utilities.

Linux Doom FAQ - - A guide to playing on Linux systems.

MancuNET - - News site with discussion forums and interviews. Also hosts various projects and personal sites.

Master Levels FAQ - - Information about the Master Levels add-on pack from id Software.

The MJ Doom Page - - General information about the games. Includes links to the FAQs, spoilers, add-ons, and utilities.

Mr. DooM - - Collected add-ons and utilities, and an FAQ for beginners.

NewDoom - - News, interviews, resources, discussion forums, and hosted projects.

Old Doom - - Offers gameplay guides, cheats, levels and level editing tips for the early doom games.

Parker Information Resources - - Contains news, links, downloads, and game information.

Planet DOOM - - Articles, screenshots, modifications, maps, and forums.

Project FreeDOOM - - Volunteer project to create a free version of Doom.

ReX's Nexus - - Personal site with news of projects the author is working on. Contains downloads of completed projects and some editing guides.

Team Hell Spawn - - Doom II WADs, forums, and links.

Doom Collector's Edition - - Review by Kevin Giacobbi , [6.0/10]. "Any serious First Person Shooter should have this as part of their collection." (November 1, 2001)

Doom 64 for Nintendo 64 at GameSpot - - Review by Jeff Gerstmann, [4.8/10]: "Sigh... yet another mediocre N64 game." (April 8, 1997)