| Alongside the explosive growth of online video over the last six years, time spent on social networks surpassed that for e-mail for the first time in February, signaling a paradigm shift in consumer engagement with the Internet. |
| Although Charles Buchwalter, senior vice president for research and analytics for Nielsen, said marketers had yet to master advertising on social media, he predicted that “over the next 12 months a model will emerge” that takes into account “the influence factor” of users who wield disproportionate power. |
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Barbara K Iverson 