| Doomworld: Provides news and information about the games and add-ons for them. Also hosts Doom related projects, discussion forums, and collected utilities and source ports. |
| Bejiitas Wrath: Personal site with add-on downloads and tips. |
| ClassicDOOM.com: Walkthroughs and guides, game comparisons, passwords, and links, for all versions. |
| Doom 3 Forums: Discussion about all versions of the game. |
| Doom 64 for Nintendo 64 at GameSpot: Review by Jeff Gerstmann, [4.8/10]: "Sigh... yet another mediocre N64 game." |
| Doom Collector's Edition: Review by Kevin Giacobbi , [6.0/10]. "Any serious First Person Shooter should have this as part of their collection." |
| Doom Connector: Service for setting up multiplayer games. |
| Doom Gamer: Information, discussion and downloads, for classic Doom and Doom 3. |
| 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. |
| Doom ][ Control Centre: Frontend launcher; screenshots and download available. |
| Doom3.co.uk: Includes game information, guides, FAQ, and media for each game. |
| 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. |
| 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. |
| 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. |
| The Doom II Room: Original levels and a getting started guide to editing. Also a favourite WADs list. |
| The MJ Doom Page: General information about the games. Includes links to the FAQs, spoilers, add-ons, and utilities. |