I've compiled all the LW writing contests I could find to date. There are 15 in all, plus a few more from other websites. Quite a few of the articles have disappeared from the web, and a couple contests are either still running or were never completed. To help future contest-runners, I added basic info about the structure of each contest. Feel free to add links to other LW posts about essay bounties you think would be useful. This is a document that anyone can edit. I have a copy saved just in case.