- ASciFi.com: The Science Fiction Forums - Message boards for a variety of series, including Farscape, Stargate, and X-Files.
- 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.
- Coffeerooms(sm): Jolau's Sci Fi Board - A gathering place for friends and fans of science fiction television.
- 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.
- Othala - Multi-fandom forum with threads for Stargate SG1, Stargate Atlantis, Red Dwarf, and Manifest Destiny.
- 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.
- 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.
- Xena and Hercules Universe - Science fiction, fantasy, and fan fiction message board.
- 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.]