Online ads to overtake outdoor ads in 2007

Spending on Internet ads will overtake billboards and other outdoor advertising in 2007, and close the gap on radio in 2008. The Internet will account for 6.5% of all advertising by 2007, according to Zenith Optimedia. Online ad spending accounted for 4.5% of the global market in 2005. Radio’s market share will fall to 7.9% in 2008, from 8.5% in 2005.