Livejournal
Livejournal is a social media platform centered around journaling created in 1999. Users can upload entries to their personal journals, follow other users' journals, and make and receive comments on individual entries. The site also allows users to create and join "communities", which generally allow members to upload their own entries and serve as hubs for discussion of shared interests. The first known non-binary communities on Livejournal appeared in 2002.