An organization to preserve fan fiction from being lost forever after takedown notices or websites going down, for example.

They run Archive Of Our Own (AO3), a site for posting fanfic; FanLore, a wiki about fanworks and fansites; [OpenDoors], (https://opendoors.transformativeworks.org/en/), a refuge for at-risk fannish content.

They also have legal advocacy for fan works.

Pretty cool project.