
Harry Potter Drabble-to-Fic Fest, The: The purpose of this fest was to encourage contributors to submit 100 word drabbles so that other writers could use them as the basis of fics. It ran from 9 May 2006 until 31 August 2006. Here is its master list.
Harry Potter Expressions of Fatherhood Fest, The: The purpose of this fest was to encourage contributors to celebrate some aspect of Potterverse fatherhood. It ran from 27 July 2006 until 31 October 2006. Here is its master list.
Harry Potter Random Facts Fest, The: The purpose of this fest was to encourage participants to write an entry based on the 20 Random Facts Meme, and then to select a fact from another participant's meme entry and use it as a prompt for a story or an illustration.
Round One of this fest (originally called the Harry Potter Random Facts/Things Meme Compilation, Fic, and Art Fest) ran from 21 September 2005 until 10 January 2006. Here is its master list.
Round Two of this fest ran from 1 September 2006 until 1 January 2007. Here is its master list.
Round Three was hosted at InsaneJournal (and open to anyone who journaled at GJ, IJ, JF, and/or LJ) and ran from 1 September until 31 December 2007. Here is its master list.
Round Four was hosted at InsaneJournal and open to anyone who journaled at an LJ-based service. It ran from 1 September until 31 October 2008. Here is its master list.
Round Five was hosted at LiveJournal and open to anyone who journaled at an LJ-based service. It ran from 31 August through December 2009. Here is its master list.
Round Six was hosted at LiveJournal and open to anyone who journaled at an LJ-based service. It ran from 4 September through 31 October 2010. Here is its master list.
Round Seven was hosted athp_random_facts and open to anyone who journaled at an LJ-based service. It ran from 1 September through 31 October 2011. Here is its master list.






Ten Prompts in Search of Their Authors Fest, The: The purpose of this occasional, informal fest was to provide ten prompts for people to turn into ficlets.
Round One ran on 14 January 2007.
Round Two ran on 7 May 2007.