The folks over at My Little Game Jam have decided to hold monthly contests called "Mini Game Jams", and unlike the main events there is no requirement for the entries to include their source code (although the game must still be made from scratch). Apparently one started earlier today, and it lasts for 48 hours. If you have an awesome idea for a fangame, now is the perfect time to create it (unless you want to wait for the next full-sized game jam that will start later on this year). Shame I wasn't already busy with my own fangame, or I would participate in the event myself.
Oh yeah, and on a somewhat unrelated note it seems that the My Little Game Dev forums are going to stay down for a couple days while its creator sets something up (think it was a new domain name or something).