New IAB data indicate Google & Yahoo have 64% share of US Internet advertising revenue!

The new 2008 Internet Advertising Revenue report just came out from the Interactive Advertising Bureau.

It has U.S. Internet advertising revenues for 2007 at $21.2b, up an impressive 26% from 2006 revenues of $16.9b, but nowhere near as impressive as Google's 56% overall revenue growth in 2007. 

With the pending Google-Yahoo outsourcing pact reportedly being negotiated, I thought it might be iluminating or instructive to see what share of U.S. Internet advertising revenues Google and Yahoo each have, and what they would have on a combined basis. 

• Given that Google's 2007 U.S. revenues were ~$8.9b that would be about 42% of all U.S. advertising of $21.2b.
• Given that Yahoo's 2007 U.S. revenues were ~$4.7b that would be about 22% of all U.S. advertising revenues of $21.2b.
• That would put Google and Yahoo's combined Internet advertising revenue shares at 64% that the "partnership" would collectively control. 

At a minimum, the domination of these two players in the U.S. Internet advertising market, combined with Google's incredible momentum in taking share from all its competitors signalling powerful network effects, must concern both the DOJ and FTC.

If Google and Yahoo partner to not compete as fully as they did before... where is competition going to come from?