The Interactive Ad Bureau says last year online spend reached a record $26 billion, a 15% leap versus the year before. In the fourth quarter alone, online advertisers spent 19% more than in the
quarter in 2009, the fifth consecutive quarter of revenue growth for the online advertising industry. The IAB finds that search advertising remains the most popular ad format for U.S. online
advertisers, accounting for some 46% of online ad spending for the year.
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