About.com: Science Fiction Guide
Reviews, articles and interviews about SFF books, along with a links library.
AllScifi: Precision Search Engine
This search engine lets you search for science fiction novels by plots, characters, setting and action elements.
Best SF
A listing of links to online science fiction and fantasy short stories.
Locus Online: Links Portal
Directory of links to websites related to SF and fantasy, from science fiction trade magazine Locus.
SciFi.com Web Guide
Internet directory compiled by the TV Science Fiction Channel.
SF: Made in Canada
Focus on Canada's science fiction, with pages on Canadian SF authors, magazines, actors and TV series.
SFcrowsnest.com: SCIFI-nder
Web directory of c. 2500 sites with a science fiction or fantasy theme.
The Linköping Science Fiction & Fantasy Archiv
USENET book and movie reviews, clip art, art, and links.
The Science Fiction and Fantasy Book List
Attempts to list every SFF author and their works. Links to both official and fan sites.
The Ultimate Science Fiction Web Guide
Science Fiction information and a collection of biographies and links to other sites.