Bing Continues to Show Growth in Search Activity, According to Comscore

Microsoft Sees Gains in U.S. Searcher Penetration and Share of Search Result Pages During the Second Week of Bing’s Debut

RESTON, VA, June 17, 2009 – Comscore, Inc. (NASDAQ: SCOR), a leader in measuring the digital world, today released a follow up study on the performance of Bing, Microsoft’s new search engine, during the second week of its public launch. The results show that Microsoft has continued to increase its position in the search market following the initial week of Bing’s debut.

Microsoft Sites saw its average daily searcher penetration and share of search result pages in the U.S. continue to climb during the second week of Bing’s introduction. Microsoft Sites’ average daily penetration among U.S. searchers reached 16.7 percent during the work week of June 8-12, up 3 percentage points from the May 25-29 work week prior to Bing’s introduction. Microsoft’s share of search result pages in the U.S., a proxy for overall search intensity, increased to 12.1 percent during the period of June 8-12, also climbing 3 percentage points from the pre-introduction work week of May 25-29.

“It appears that Microsoft Bing has continued to generate interest from the market for the second consecutive week,” said Mike Hurt, Comscore senior vice president. “These early data reflect a continued positive market reaction to Bing in the initial stages of its launch.”

About Comscore

Comscore, Inc. (NASDAQ: SCOR) is a global leader in measuring the digital world and preferred source of digital marketing intelligence. For more information, please visit www.comscore.com/companyinfo.

Contact:
Sarah Radwanick
Director, Regional Product Marketing
Comscore, Inc.
+44 (0) 20 7099 1784
worldpress@comscore.com