Astro Gate Forums - Message board with topic threads including Andromeda, The X-Files, and Stargate: SG-1, as well as discussion of science and science fiction in general.
Fantastic Television - Message board and chat room for fans of science fiction and fantasy shows.
Flare Science Fiction Forums - An old, large Star Trek-turned-Sci-Fi community seeking new members. Formerly known as the Starfleet Communications Relay and the Behaviour Group Forums.
The Fringe Posting Board - Discussion forum for fans of anime, Buffy the Vampire Slayer, Angel, Babylon 5, Highlander, Stargate SG-1, and The Tomorrow People. Includes polls and fan fiction.
Othala - Multi-fandom forum with threads for Stargate SG1, Stargate Atlantis, Red Dwarf, and Manifest Destiny.
Tigerclaw's Crossfire - Fans debate burning issues such as whether Imperial Star Destroyers from Star Wars could defeat Star Trek's Galaxy-class starships in combat. Includes polls and a variety of message boards.
Yahoo! Groups: Sci Fi Junkies - Message board for fans of Stargate SG-1, Enterprise and The Dead Zone to discuss how much they enjoy watching the shows. Includes photos and polls. [Yahoo! registration required.]
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