The X-Files TV Show
- Trivia, cast information, and episode list.
- http://www.crazyabouttv.com/xfiles.html

X-Files European Society
- Home for fans in Europe. Includes pictures, audio files, mailing lists in English and Italian, and fan fiction.
- http://www.starpages.net/X/_/X_Files/943222441-1.html

X-Site-ing Adventures of Minna the Martian
- Cast information, pictures, songs, and information about the series in Finland.
- http://www.nettilinja.fi/~vmaunula/xfiles.htm

X-Files and Ufo Supersite
- Wallpapers, multimedia, and static and animated art, as well as news about UFOs.
- http://www.xfiles.250x.com/index1.html

The X-Files 101
- Episode guide, a list of writers, directors, glossary, Frequently Asked Questions, and a Who's Who list.
- http://www.turning-pages.com/xf101/

XF Online
- Features poll results, multimedia, episode guide, and quotes.
- http://www.xfvote.de/

The X-Files Compilation
- Biographies for major and minor characters, episode synopses, nitpicks, in-jokes, cast and crew information, and bloopers.
- http://x-files.host.sk/