Google’s Share of U.S. Online Ad Market Hits 40 Percent

Google is really growing into its gorillahood. A quick calculation (via HipMojo), based on the latest figures from the Interactive Advertising Bureau, shows that in the first half of 2007 Google commanded a 40 percent market share of all online advertising in the U.S. (Okay, I’m rounding up. It was really 39.8 percent). But that compares to a 34.6 percent share in the first half of 2006, based on IAB data for that period.
Here’s the math:
$3.98 billion (Google’s U.S. revenues in the first half of 2007)/$9.99 billion (IAB’s estimate of total U.S. online ad revenue in 1H07) = 39.8 percent.

For the first half of 2006 the numbers are:
$2.732 billion (Google’s U.S. revenues in 1H06)/ $7.9 billion (IAB’s estimate of U.S. online ad revenues in 1H06) = 34.6 percent.
http://www.techcrunch.com/2007/10/05/googles-share-of-us-online-ads-hits-40-percent/