F&SF Organizations
World Science Fiction Society
The purposes of the WSFS, according to its rules, are as follows: to choose the recipients of the annual Hugo Awards (Science Fiction Achievement Awards), to choose the locations and Committees for the annual World Science Fiction Conventions (the Worldcons), to attend those Worldcons, and to choose the locations and Committees for the occasional North American Science Fiction Conventions (the NASFiCs). (A NASFiC is held in North America in any year where the Worldcon is outside of North America.)
Broad Universe
Broad Universe is an international organization with the primary goal of promoting science fiction, fantasy, and horror written by women. Anyone excited about that project is welcome to join.
The Science Fiction Poetry Association
The Science Fiction Poetry Association was founded in 1978 to bring together poets and readers interested in science fiction poetry. SFPA publishes the yearly Rhysling Anthology, which is comprised of works nominated by members for the Rhysling Awards for Best Poems of the Year.