According to a study by the Interactive Advertising Bureau, online advertising spend in the US rose for the fourth consecutive year to $16.9-billion in 2006 – a 35% increase over 2005.

"Interactive advertising revenues continue to show solid growth as advertisers and agencies recognise that it is a medium that can uniquely affect consumer behavior from product awareness, to purchase intent, to actual purchase and then brand loyalty," says Randall Rothenberg, president and CEO of the Interactive Advertising Bureau. "We have every confidence that this growth trend will continue as marketers allocate more of their total marketing dollars to interactive, and the industry delivers effective and innovative platforms for connecting with consumers."
According to the report, some of the key findings in 2006 were that consumer-related advertising accounted for 52% of online ad revenue; revenue from advertising on search engines accounted for 40%; and display advertising generated 32% of online ad revenue.