Science fiction societies
In the United States, many science fiction societies were launched as chapters of the Science Fiction League and, when it faded into history, several of the original League chapters remained viable and were subsequently incorporated as independent organizations. Most notable among the former League chapters which were spun off was the Philadelphia Science Fiction Society, which served as a model for subsequent SF societies formed independent of the League history.
Science-fiction societies, more commonly referred to as "clubs" except on the most formal of occasions, form a year-round base of activities for science fiction fans. They are often associated with an SF convention or group of conventions, but maintain a separate existence as cultural institutions within specific geographic regions. Several have purchased property and maintain ongoing collections of SF literature available for research, as in the case of the Los Angeles Science Fantasy Society, the New England Science Fiction Association, and the Baltimore Science Fiction Society. Other SF Societies maintain a more informal existence, meeting at general public facilities or the homes of individual members, such as the Bay Area Science Fiction Association.