To stop breaking links each year, "http://contest.korelogic.com" has been retired; each year's
content from now on will be born with the year in the hostname, i.e. contest-2012.korelogic.com.
The current contest site, for DEFCON 20, is https://contest-2012.korelogic.com/
Past years include:
The 2011 contest
The 2010 contest
As much as possible, redirects have been set up from old
to point to the appropriate pages on contest-2011 or contest-2010.