Google's Share of U.S. Online Ads Hits 40 Percent
<right
$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.
Update: As one commenter points out below, this means Google is out-pacing the growth of online advertising by a wide margin. Total online advertising revenues grew 26.5 percent year-over-year, while Google’s ad revenues grew 45.7 percent.
All numbers come from Google earnings releases and IAB.