Game development jams/contests Thread

I was thinking about entering a game jam (aka game development contest with limited time, e.g. 48 hours), but even though there are lots of indie jams, there doesn't seem to be any site listing them all. Here are the jams I know of, most of them open for all:

Ludum Dare is one of the most popular ones, with hundreds of games submitted each time. It runs every few months, and has the main competition (48 hours), and the Jam competition (72 hours, less rules) running simultaneously. Huge amount of blogs/post-mortems from the developers.

Global Game Jam might be the biggest one, according to the website - it attracted over 3000 submissions this year. It lasts two days (I think), and takes place once a year, sometime in January.

Java4K is a game jam with a twist: The games must be written in Java, and their size can't exceed 4 kilobyte. It takes place once every year, from December to February (thus making it more of a contest than a "jam").

PyWeek is another specialized game contest, this time in Python. Contestants have one week time to finish the game. PyWeek is twice a year, one time in Spring and one time in August/Fall.

BaconJam emerged from the Reddit community, and runs few times a year for two days.

7DRL is a week-long competition specialized in roguelike games. It seems to be its first competiotion, and it starts tomorrow.

OneGameAMonth is pretty self-explanatory. It's not really a competition, and surely no jam - it is more of a challenge. Participants are encouraged to make a game every month, for one year straight. The competition runs from January to December, but you can join at any time of the year. It is intended to be run consecutively.

Do you know of any other game jams (preferrably online)? Please let me know.

P.S. Beware of dubious contests that take your game's copyright from you.

EDIT: Finally found some jam listing sites, one from 2010 and a newer, jam dedicated site, CompoHub. I recommend especially the latter, it has a straightforward, calendar-like interface, and seems to cover quite a lot of competitions. For anyone interested, here are some game jam tips.
If you know of any other competitions, post them below.

Edited by: Pabo