Inspired by the discussion around Amazon’s announcement of Kindle Worlds, here’s a preliminary timeline on Fanlore of notable happenings related to fandom and profit. Famous instances of commercialization of fanworks, of exchange of money in fandom, profit-related incidents between fans or between fans and professionals, and so on.
Any examples to add? Please edit the wiki page or drop the info here so I can edit it in. There’s a great deal still missing, especially about commercialization of fanworks besides fic (fan films, mods, fan translations etc), and I have vague memories of reading about many more profit-related incidents in academic works and elsewhere.