IAB: First-Half Internet Ad Revenues Of $10B Up 27%

IAB President/CEO Randall Rothenberg calls it the "Oh my God, it happened" year for major marketers as the shift of marketing budgets to online channels marches on. Search continued to account for the highest dollar spending, at 41% of the total. Still, Rothenberg says, more efficiency and simplicity are needed for spending to really take off.

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