Topic threads include plot speculations, fan fiction, DVDs, and the character of Jack Bauer.

Discussion of episodes, characters, music, and fan fiction.

Message board based in the U.K.

Discussion board for fans. Available in German and French, as well as English.

Discussion board covering the show, cast, and characters. Available in German and English.

Message board for fans of the show, with rules to prevent U.K. viewers from being spoiled on future episodes.

Discussion of plot, news, and spoilers.

Forum which includes discussions about episodes, news, and characters.

Message board with topic threads including gossip, interviews, and show seasons.

Topics focus on the show and on Kiefer Sutherland. [Yahoo! registration required.]

Members post stories based on the series. [Yahoo! registration required.]

Message board. Spoilers for U.K. viewers discouraged. [Yahoo! registration required.]

Discussion board with membership limited to people older than 30. Includes spoilers. [Yahoo! registration required.]

Discussion board for viewers. [Yahoo! registration required.]

Discussion of the series. [Yahoo! registration required.]