Battlefield Advanced: Offers forums and tutorials for modifying the battlefield series. Downloads available to registered users.
Battlefield Forum: Forums for clans, modifications, tactics and games discussion. Registration required to post.
Battlefield Nation: Includes forums, guides for each game, and a downloads area with maps, modifications, patches and demos.
Battlefield Singleplayer: Offers AI articles, forum and downloads area with maps and modifications.
Eve of Destruction: A modification for Battlefield: Vietnam and Battlefield: 1942. Includes news, forums and downloads.
Planet Battlefield: Features news, mods, interviews, tweaking and strategy tips, game information. Official GameSpy Planet site.