Organization formed for artistic, literary, and charitable purposes. Centered around the visual arts of science fiction and related topics.

SF society based in the Baltimore region. Site has links and costuming information.

The San Francisco Bay Area Science Fiction Association.

Home of the British Fantasy Society.

Black scifi, horror, and fantasy online club.

Advocates of science fiction written by females.

The British Science Fiction Association.

US-based club for science fiction and space-aviation enthusiasts.

A Delphi Forums community of science fiction and fantasy readers and writers. Home of the Wednesday Night Irregulars chat, a Delphi fixture since 1985.

SF book reading and discussion group meeting twice monthly in Denver, Colorado. Web site contains pages on books and authors.

El Dorado County and Sacramento County-based science fiction and fantasy social club.

For fans of the Star Wars saga who live in the Louisville, Kentucky area to meet.

Monthly reader's group for Louisville, Kentucky SFF lovers.

Home of the world's largest open-shelf collection of science fiction books; includes a searchable database.

Nashville-based SF book club which meets at Barnes and Noble on the first sunday of every month.

Book club for fans of science fiction in the Nashville area.

An old pre-internet science fiction club and literary SFF discussion group which started on AOL.

Alternate-History association. Contains a forum for discussion of ideas, and a story workshop for alternate history writers.

Organisation for science fiction and fantasy fandom centered around the Chattanooga area of the USA.

Online resource for sf literature from the University of Liverpool's Science Fiction Foundation.

Canada's national organization for SF, fantasy and horror writers.

The Science Fiction Research Association. Supports and promotes literature in SFF.

Lincoln, Nebraska-based science fiction and fantasy society.

A non-profit organization dedicated to the preservation of science fiction in all its forms regardless of media.

Covers the activities of the science fiction and fantasy guild in Louisville, Kentucky (USA).

Literary foundation for SFF.

Working to promote literary quality in speculative fiction. Site has frequently asked questions, news, resources, and information on their programs and grants.

The main organisation of international SFF fandom.

Home of the Welsh Science Fiction Association.