science fiction fandom

Science fiction fandom or SF fandom is a community of people actively interested in science fiction and fantasy literature, and in contact with one another based upon that interest. SF fandom has a life of its own, but not much in the way of formal organization (although clubs such as the Futurians [1937-1945], the Los Angeles Science Fantasy Society [1934-present], and the National Fantasy Fan Federation [1941-present] are recognized features of fandom).
See more at Wikipedia.org...