This year’s Nordic Game Jam was crowned as the world’s largest game jam with about 470 participants. The winners have been announced, and can see the full list here: http://nordicgamejam.org/2013/01/21/winners-ngj13/
My personal highlight goes to Stalagflight (https://dl.dropbox.com/u/85666/Stalagflight-web/webBuild.html), which is as simple as stupidly fun! Stalagflight can be played with the keyboard, but it is tricky. If you have a gamepad the experience is much better.
On other lines, if you want to stretch the face of Justin Bieber and force him to make heavenly sounds, rejoice with this: http://unicorn7.org/static/be/