Google has announced the winners of its 2010 Online Marketing Challenge, and if you're interested in the details on how the winners were chosen (proprietary algorithm, blah blah blah), you can read all about that on the Google site.
Additionally, go read the site for the names of the Universities and individual students that worked so hard to win these awards. As for what they did, check out the actual winning sites for inspiration on how to boost your site or blog:
GLOBAL 2010 Winner
Charlie and Moon
Regional Winner
BustaGrooveDanceStudio
AMERICAS Winner
ThreadsforThought
EMEA Winner
Taniec (Polish Dance Studio)