Check out the 2006 Vaporware awards
We have also two contests:
One that has ended, and the winner actually produced a 210 bytes executable file which downloads and executes a file from an encrypted (XOR-ed) URL. See also the previous entries at the SecuriTeam blog (look for Tiny PE). And if you are into such things, check out the Code-Crunchers mailing list
Perl Golf – to quote from the website:
Perl Golf is a competition to find the shortest (fewest keystrokes) Perl code to solve a given problem
The 23rd Chaos Communication Congress is running now. I eagerly await the videos. In the meantime, check out the videos for the last conference.