Internet advertising up 26% this year

Revenue for the first nine months of 2007 totaled $15.2 billion, up nearly 26 percent from the $12.1 billion recorded during the first nine months of 2006, the report said.

"The continued robust growth of the industry indicates that marketers increasingly understand and appreciate the benefits of interactive advertising," IAB Chief Executive Randall Rothenberg said in a statement. "Marketers large and small have come to accept digital media as the fulcrum of any marketing strategy."

The boom in online advertising has driven media and technology companies to build up their online advertising businesses, partly through acquisitions.