Clans and Guilds
Architects of War, Dark Hunters, Team Destruction Gaming, The Dead Kennedys, The Horny Toads, YoShiKu
Unreal Tournament
Cheats and Hints, Clans and Guilds, Interviews, Modifications and Add-Ons, Reviews and Previews, #UT1 Gaming Community, 3D Gamer, Chewy's Driveway, Gameaholic, Jakes, Kitana's Castle, Loki, Neoseeker, Skully's World, TeamUT Online Gaming
Unreal Tournament 2003
Clans and Guilds, Modifications and Add-Ons, Reviews and Previews, PlanetUnreal - UT2003, Unreal Tournament 2003, Unreal Tournament 2003 Clans, UT2003Files
Unreal Tournament 2004
Clans and Guilds, Reviews and Previews, GamesCargo, HomeLAN Interview with Cliff Bleszinski, UnderGroundOnline, Unreal Tournament 2004, UnrealTournament2004.co.uk
Fasterfiles
Archive of user-submitted maps for several game types of Unreal Tournament 2003 and 2004.
GameSites 200
Ranks sites on or about the series by user popularity.
The Game Machine
Offering news, map downloads, game reviews and forums.