Video to lead online advertising growth in 2012

Video will continue to be the fastest growing online advertising format next year, according to eMarketer, with spending growing 43.1% to $3.09 billion. This year, video advertising spending in the U.S. grew 52.1% to $2.16 billion, eMarketer estimates. In the five-year span between 2010 and 2015, video advertising will grow by a compound annual rate of 38% before reaching $7.11 billion in 2015. For more of eMarketer's coverage of advertising spending, click here.

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