ComScore: Online video ad views see big bump

comScore (Nasdaq: SCOR) reported some 172 million U.S. Internet users watched online video content in December, almost identical to November viewing, for an average of 14.6 hours per viewer, down slight from November's 14.7 hours.

Google Sites, driven primarily by video viewing at, ranked as the top online video content property in December--as it has perennially, with 144.8 million unique viewers, which was down slightly from November's 145.8 million.  Yahoo! Sites, meanwhile, followed with 53.1 million viewers, a big drop from the 61.8 million viewers it had in November.

Vevo, which just celebrated its one-year anniversary, ranked third for the second month in a row with some 50.6 million unique views, up from the 50.3 million it recorded in November.

AOL, Inc. maintained the fourth position with 48.6 million viewers, followed by Viacom Digital with 45.9 million. Google Sites had the highest number of viewing sessions with 1.9 billion, and average time spent per viewer at 274 minutes, or 4.6 hours.

Ad property results, meanwhile, were led by Hulu, as usual, which recorded 1.2 billion ads viewed. Tremor Media saw a huge jump in ads viewed, increasing from 477 million in November to more than 1 billion in December. ADAP.TV (682 million) also saw a significant jump.

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