Modifications and Add-Ons

Colony 7
Story, screen shots, and downloads.
http://colony7.gate-birds-sky.org/

Elite Farce
Bots and skins plus comic strips based on the game.
http://www.planetquake.com/polycount/cottages/elitefarce

Elite Force Phantoms
Single player modification with screenshots and downloads.
http://www.geocities.com/stemoitie/EFPhantoms.htm

A Gate, Two Birds And The Beautiful Sky
Single player open-source modification and the official sequel to Colony7. News, screen shots, FAQ, and forums.
http://www.gate-birds-sky.org

Hazard Team Qualification
Contains news, information, and downloads.
http://www.geocities.com/mhutchim/elite_force

O'Brien's EF MODs and MAPs
Includes self-made maps and modifications, plus a forum.
http://www.efmods.com/

Red Dwarf
Modification based on the TV show with maps and skins.
http://www.rdmhos.netfirms.com/

The Return
Based on a book written by William Shatner where the Romulan Empire forge an alliance with the Borg.
http://web.ukonline.co.uk/thereturn/

SpaceStation K7
Contains skins and modifications based on themes from the original series.
http://spacestationk7.eliteforce.com/

The Synapse
Skins, tutorials, and modifications.
http://dynamic5.gamespy.com/~thesynapse/