Bibliography of Mormon Speculative Fiction: Works published by or about Mormon SFF writers, including novels, short stories, articles, and interviews.
Chronolgy of the Great Ark: Attempts to reconcile various literary SFF universes into a common time-line.
Classic Science Fiction: Thematic guide to classic science fiction.
Classics of Science Fiction: Site devoted to identifying the classic books of science fiction.
Index to Science Fiction Anthologies and Collections: Database of anthologies and single-author collections published before 1984, from William Contento.
Islam and Science Fiction: Resource on Islam as it appears in science fiction books and cinema.
Jewish Science Fiction and Fantasy: List of SFF novels and shorter works somehow certified kosher.
Lunacat.net: SFF books written by women. Broken down by author and type of story.
Religion in SF/F Literature: Includes c. 2000 references to real churches, religions, and tribes in science fiction novels and short stories.
Steampunk: Portal for SFF - includes links to author websites, and direct links to online texts.
The Locus Index to Science Fiction: Bibliographical database of novels and short stories published after 1983. From the US trade journal for the genre.
The Moon in Science Fiction: Bibliography of SF novels dealing with the moon.
Transformation Stories List: Books and stories with shapeshifting (werewolves, and nanotechnology) as a theme. Searchable, with brief descriptions and reviews.
Uchronia: The Alternate History List: Annotated bibliography of novels, stories and essays involving the 'what ifs' of history.
Utopian and Dystopian Theses and Dissertations: Listing of around 2000 theses and dissertations about SFF utopian and dystopian literature.