World Science Fiction
Society / Worldcon [Official] 
This is the official World Con site. If you are a
convention goer then this is the must see site.
http://www.wsfs.org/
British Science
Fiction Association
http://www.bsfa.co.uk/
The United Federation
of Phoenix
is the southwest's oldest Star Trek and science fiction
fan organization, continuously operating since 1975.
The club meets every two weeks at various locations
around the Phoenix metropolitan area.
http://www.u-f-p.org/
ASFA :: Association
of Science Fiction & Fantasy Artists 
Professionally done site with lots of galleries and
frequently updated. This is not your usual site with
a couple of low quality pictures of dragons.
http://www.asfa-art.org
The Washington
Science Fiction Association Online
... The Washington Science Fiction Association is
the oldest science fiction club
in the greater Washington area.
http://www.wsfa.org/
Science Fiction
Association (Singapore)
Welcome to the website of the. Science Fiction Association
(Singapore). ...
http://www.sfas.org.sg/
The Science Fiction
Research Association
http://www.sfra.org
The
Yahoo List of Science Fiction organizations
http://dir.yahoo.com/Entertainment/Genres/Science_Fiction_and_Fantasy/Organizations/
American Association for Artificial Intelligence - nonprofit scientific society devoted to the promotion and advancement of artificial intelligence. http://www.aaai.org/
San Francisco Robotics
Society of America (SFRSA)
http://www.robots.org/
