Internet ad revenue hit $31 billion last year

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New York—Expenditures on Internet ads accelerated through 2011 to reach a record $31 billion for the year, up 22% over 2010, according to the Interactive Advertising Bureau. Display-related advertising revenue last year totaled $11.1 billion, more than a third of all Internet ad sales, up 15% from the $9.6 billion logged in the previous year, according to IAB's Internet Advertising Revenue Report. Digital video, a component of digital-related advertising, was up 29% year over year to $1.8 billion. The largest share of Internet ad revenue went to search campaigns. Search revenue last year totaled $14.8 billion, up almost 27% from $11.7 billion gained in the previous year. And while spending allocations on mobile ads constituted a small proportion of the total, it experienced the fastest growth of any category, up 149% to $1.6 billion.
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