group affinity group https://en.wikipedia.org/wiki/Affinity_group https://www.wikidata.org/wiki/Q1643970 A group formed around a shared interest or common goal, to which individuals formally or informally belong. Affinity groups are generally precluded from being under the aegis of any governmental agency, and their purposes must be primarily non-commercial. Examples of affinity groups include private social clubs, fraternities, writing or reading circles, hobby clubs, and groups engaged in political activism. Affinity groups can be based on a common social identity or ideology (e.g., anarchism, conservatism), a shared concern for a given issue (e.g., anti-nuclear, anti-abortion) or a common activity, role, interest or skill (e.g., legal support, medical aid, software engineering). Affinity groups may have either open or closed membership, although the latter is far more common. affinity groups Cassell's Queer Companion: A Dictionary of Lesbian and Gay Life and Culture