Another article on the Intuit Super Bowl contest. As I read this I couldn't help wondering how they'd get around some group like Reddit rigging the voting. Sounds like the online voting only narrows the pool to the top 20 then Intuit selects a winner.
http://www.businessinsider.com/intuit-will-spend-millions-to-buy-a-small-business-a-super-bowl-ad-2013-7