The blogosphere is playing an even bigger role this year than in 2009 in sizing up the roster of Super Bowl ads and determining whether they're buzzworthy, with the number of posts about the big game jumping from 15,702 last year to 25,725. "Social media has become part of the beginning, the middle and the end of a Super Bowl campaign for marketers," eMarketer senior analyst Debra Aho Williamson said.

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