The top 10 hottest brands in online video

7. Microsoft

The software brand grabbed 6.4 million views in April and slipped to seventh place. Microsoft has more than 60 campaigns, and three of them collected more than 1.5 million views each in April, "A More Beautiful Web," "Smoked by Windows Phone," and "TAD." Each campaign is about a different sector of the brand -- internet browsers, smartphones, and a private cloud solution.

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