Last year there was discussion where some HNers suggested that they'd be interested in participating in the competition if we allowed other forms of data:
<a href="http://news.ycombinator.com/item?id=2321009" rel="nofollow">http://news.ycombinator.com/item?id=2321009</a><p>This is the early announcement this year, where we're soliciting suggestions about other forms of data to include for this year.