ASciFi.com - Science Fiction Portal
Multiple genre related forums from Andromeda to X-files.

The Jedi Girl Internet Community
Message board, articles, and features for female fans of the genres.

MARSnext
Chat community in a Martian setting. [fee registration required]

Chicago Science Fiction & Fantasy Discussion list
The subscription information of a mailing list for denizens of the Chicago area to discuss issues relating to science fiction, fantasy, and horror.

Sci Fi Chat
Forum covering the genre with optional registration and member profiles.

SciFi.com Chat
Upcoming events, connection help, transcripts and FAQs for this IRC and java chat server.

EZboard: MaRS
Forums for Star Trek, Star Wars, Dune and general science fiction.

Scifispace.com: Message Boards
Discussion on genre and horror topics, including television and movies.

Sci-Fantasy
Forum based review site with an auction facility.

Groucho's Sanctuary
Message boards covering a variety of topics on the genres.

The Last Outpost
Message board for covering genre TV and film.

Misc. Debris
Forum for discussion of science fiction, fantasy, anime, and other forms of entertainment.

MSN Groups: Links For Science Fiction, Fantasy, Horror
Link collections, book discussions, forum and chat.

FutureNoir
Movies, books, television, and anime discussion.

Outpost10f: Ten Forward
Star Trek role-playing chat.

Unified SciFi Forums
Forum discussions and role-playing covering the genres and horror topics.

Tangent21
Discussions covering the genres and cult TV.

EZboard: The Sci-Fi Alliance
Message board with topics including Babylon 5, Star Wars, Farscape, Star Trek, Buffy, Xena and Enterprise.

The Emerald Forest
Discussion and roleplaying forums and games.

Fantastic Poems
Discussion on poetry related to the genres.

SF Fandom
Moderated discussion forums for fans of science fiction, fantasy, history, and mythology. Forums cover books, movies, television shows, and actors.

Outpost10f: D'Deridex
Star Trek Romulan themed role-playing chat.

Outpost10f: Rotarran
Star Trek Klingon themed role-playing chat.

The Portal: Science Fiction and Fantasy Community
Community with a variety of forums from Star Wars to Wheel of Time.

chronicles-network
A forum focusing on science fiction and fantasy interests in all media. History, science and nature, world affairs and humour.

Middle Earth and Hogwarts Central
Discussion forums for Lord of the Rings and Harry Potter fans.

Reaper's Cafe
Discussions on fantasy books and movies.

Take Your Pick
Message boards on Lord of the Rings, Harry Potter, Buffy the Vampire Slayer, X-men, Anime/Manga and general science fiction.

The Website at the End of the Universe
Community and blog covering the genres with news and links.

Alder Hill
An online interactive medieval town situated in a fantasy world. The world is developed further by a global member community.

Chronicles-Network Forums
Discussions covering TV, books and movies, as well as science and technology and world affairs.