Doomworld Save
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.
http://www.doomworld.com/   

Bejiitas Wrath Save
Personal site with add-on downloads and tips.
http://bejiitas_wrath.tripod.com/   

ClassicDOOM.com Save
Walkthroughs and guides, game comparisons, passwords, and links, for all versions.
http://classicdoom.com/   

Doom ][ Control Centre Save
Frontend launcher; screenshots and download available.
http://rayroy3.tripod.com/dc/dc.htm   

Doom 3 Forums Save
Discussion about all versions of the game.
http://www.doomforums.com/   

Doom 64 for Nintendo 64 at GameSpot Save
Review by Jeff Gerstmann, [4.8/10]: "Sigh... yet another mediocre N64 game."
http://www.gamespot.com/n64/action/do...   

Doom Collector's Edition Save
Review by Kevin Giacobbi , [6.0/10]. "Any serious First Person Shooter should have this as part of their collection."
http://www.gamezone.com/gzreviews/r19...   

Doom Connector Save
Service for setting up multiplayer games.
http://www.codeimp.com/connector_info...   

Doom Gamer Save
Information, discussion and downloads, for classic Doom and Doom 3.
http://doom.gamer.hr/   

Doom Underground Save
Help for beginners. Also collected add-ons, utilities and FAQs.
http://www.nitrorc.com/doomug/   

Doom Wiki Save
Community knowledge base, including game information, trivia, technical articles, strategy guides, information about WADs, and editing tutorials.
http://doom.wikia.com   

DoomGate Save
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.
http://www.gamers.org/doomgate/   

Lee Killough's Doom Page Save
History, trivia and technical information. Includes pre-launch press releases and public alpha and beta releases.
http://www.rome.ro/lee_killough/   

Linux Doom FAQ Save
A guide to playing on Linux systems.
http://www.gamers.org/dhs/helpdocs/Li...   

MancuNET Save
News site with discussion forums and interviews. Also hosts various projects and personal sites.
http://mancubus.net/   

Master Levels FAQ Save
Information about the Master Levels add-on pack from id Software.
http://www.cultmovies.dk/mlfaq102.htm   

Mr. DooM Save
Collected add-ons and utilities, and an FAQ for beginners.
http://www.geocities.com/teeprint/   

NewDoom Save
News, interviews, resources, discussion forums, and hosted projects.
http://www.newdoom.com/   

Old Doom Save
Offers gameplay guides, cheats, levels and level editing tips for the early doom games.
http://www.olddoom.com/   

Parker Information Resources Save
Contains news, links, downloads, and game information.
http://www.parkerinfo.com/dmdo/indexd...   

Planet DOOM Save
Articles, screenshots, modifications, maps, and forums.
http://planetdoom.gamespy.com/   

ReX's Nexus Save
Personal site with news of projects the author is working on. Contains downloads of completed projects and some editing guides.
http://doomnexus.50megs.com/   

Team Hell Spawn Save
Doom II WADs, forums, and links.
http://www.teamhellspawn.com/   

The Doom II Room Save
Original levels and a getting started guide to editing. Also a favourite WADs list.
http://www.users.waitrose.com/~sharx/   

The MJ Doom Page Save
General information about the games. Includes links to the FAQs, spoilers, add-ons, and utilities.
http://www.sonic.net/~mortlgrn/doom.html   

exl Save
Personal site with new levels and utilities - including WhackEd.
http://www.teamhellspawn.com/exl/   

Forum - Usenet rec.games.computer.doom.playing
Forum - Usenet rec.games.computer.doom.help
Forum - Usenet rec.games.computer.doom.misc

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