alt.horror.werewolves was a forum on Usenet in the 1990s and early 2000s. It is where the therian community first gathered online. The forum is defunct but archived by Google and included here for historical purposes.
The Werelist has existed on and off since the mid 2000s. Registration is free and required to post or view some discussion threads.
Admin: Jakkal
Reddit is a social media forum site. An account is not needed to browse but is required to post or comment.
r/Therian (link): A friendly community support group for therians, otherkin, allies, and anyone else who wants to learn more about the subject of therianthropy and therians themselves. Therians are individuals that believe or feel they are a non-human animal. Anyone is welcome here, as long as they are respectful and follow our community rules.
r/TherianAdult (link): A friendly community support group for therians, otherkin, allies, and anyone else who wants to learn more about the subject of therianthropy and therians themselves - In a more mature space than /r/Therian. Therians are individuals that believe or feel they are a non-human animal. Anyone is welcome here, as long as they are respectful and follow our community rules.
r/Otherkin (link): Otherkin is community of individuals that identify as nonhuman in some distinct manner. We are NOT a community for works of fiction, roleplaying, or the furry fandom.