Allscifi Star Trek Spotlight - Critical commentary from the original series, such as what the Horta does for single parenting and how Vulcans keep their women in line with finger foreplay.
Steve's Star Trek: TOS Site - Features animations, episode details with ratings, sound clips and screen caps.
Trek Bits - Episode reviews, video captures, and downloads, including sounds, fonts, and wallpapers.
Trekology: The Study of Star Trek - Study of the series and how it works. Includes analysis and commentary on several science fiction adventures on television.
The Cubs' Side of the Mountain - non-explicit (G-PG13) Spock/McCoy fiction, art, and poetry archived by Janet the Coyote.
Karracaz Startrek Fanfiction - KarraCaz's original series Star Trek fanfiction and art mostly centered around Spock, his family, and Vulcans, but also branching out into the crew and their interactions.
Pointy Ears - Poetry and fiction about Spock and his friendship with Captain Kirk. Also provides some Spock desktop wallpapers.
Reldai Sash-Masu - PG Stories - Varied non-adult Star Trek fanfiction with het, slash, and gen pairings such as Spock/McCoy, Spock/Saavik, and Kirk/Spock, by Reldai Sash-Masu.