comScore Releases December U.S. Search Engine RankingsRESTON, Va., January 15, 2007 – comScore Networks today released its monthly qSearch analysis of activity across competitive search engines.  In December 2006, Google Sites captured 47.3 percent of the U.S. search market, gaining 0.4 share points from the previous month.  Yahoo! Sites grew 0.3 share points, maintaining its second place ranking with 28.5 percent of U.S. searches, followed by Microsoft Sites (10.5 percent), Ask Network (5.4 percent) and Time Warner Network (4.9 percent).

Share of Online Searches by Engine November 2006 - December 2006 Total U.S. Home, Work and University Internet Users Source: comScore qSearch
	Nov-06	Dec-06	Pt Chg vs. Previous Month
Total Internet Population	100%	100%	N/A
Google Sites	46.9	47.3	0.4
Yahoo! Sites	28.2	28.5	0.3
Microsoft Sites	11.0	10.5	-0.5
Ask Network	5.5	5.4	-0.1
Time Warner Network	5.1	4.9	-0.2

•          Americans conducted 6.7 billion searches online in December, up 1 percent versus November.  Annual growth rates in search query volume remained strong with a 30-percent increase since the same month a year ago.

•          Google Sites led the pack with 3.2 billion search queries performed, followed by Yahoo Sites (1.9 billion), MSN-Microsoft (713 million), Ask Network (363 million), and Time Warner Network (335 million).

For more information on comScore qSearch, please email searchsolutions@comscore.com or call (650) 244-5412.

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