This is the bar none, best resource for all cannon info on Star Trek. It is done in a wikipedia-style article. A definite must-see for all trekkies. Just be sure to set an alarm before you start reading, or you will have your door broken down by people wanting to know where you've been for the past 3 days.

Lots and LOTS of fan made Star Trek movies (in the Next Generation style).

Some surprisingly good fan fiction set in the Star Trek: Enterprise universe. Available for download as PDF files.

Two Minnesota fans of the original "Star Trek" series spent seven years, off and on, creating an all-new episode in the 1960s style using their own actors, sets and props. Behold, the U.S.S. Exeter! For Next Generation or Voyager fans you can also see www.ussintrepid.net/

Streaming online classic Star Trek episodes.

Yet another series of Star Trek fan made films, this time of a sister ship to the Enterprise, IE: Starship Farragut.

Star Trek starship designs and Federation technology.

Tutorial on how to get Star Trek: The Final Unity up and running on a Windows XP system. See a review of this game at http://www.gamespot.com/pc/adventure/startrekthenextgfu/review.html?om_act=convert&om_clk=gssummary&tag=summary;read-review

Online fan made movies of the continuing voyages of the starship Enterprise. Includes guest appearances by Walter Koenig and George Takei. See also
http://starshipexeter.com/ and http://www.startrek-lexington.com/.

Tongue in cheek, Star Trek themed, "inspirational" posters.

Fan made Star Trek movies (in the Next Generation/Star Trek: Voyager style).