I've added a few links to the blogroll/websiteroll to the right:
Maximizing Progress - See, for example, Geoffrey von Maltzahn ~ Top MIT Grad Inventor! on the Lemelson-MIT Student Invention Prize.
Science Fiction Awards Watch
Marooned - Science Fiction books on Mars - Winners of SF prizes and awards, and contestants in SF contests, appear frequently.
Idea Connection - The link is to their list of contests, but there are lots of other resources there on related approaches to innovation like crowdsourcing, open innovation, and so on. Here's the Home Page.