GOOGLE CONTINUES TO INCREASE SEARCH ENGINE MARKET SHARE

comScore Reports Slowdown in Overall U.S. Search Activity

RESTON, Va., Feb. 28, 2006 - comScore Networks today released its monthly qSearch analysis of activity across competitive search engines. In January 2006, Google reinforced its status as market leader of the U.S. search market with a 41.4 percent share of all searches submitted, up more than 6 share points versus year ago. Yahoo! maintained the #2 spot in the ranking with 28.7 percent share of all searches, while MSN ranked third capturing 13.7 percent of all online searches.

Additional findings from the January monthly analysis include:

Americans conducted 5.48 billion searches online in January, up 11 percent from the previous year. While this growth is still strong, it reflects a substantial slowdown from the 42 percent surge seen in January 2005 versus the previous year.

Google Sites once again led the group with 2.3 billion searches followed by Yahoo! Sites (1.6 billion searches), MSN-Microsoft Sites (752.5 million searches), Time Warner (432.6 million searches), and Ask Jeeves (307.3 million searches).

• Google Sites won top honors in share of tool bar search, capturing 49.5 percent of all tool bar searches, while Yahoo! Sites secured 45.5 percent.

"This report provides evidence that the growth in the U.S. Search market is slowing," commented Dr. Magid Abraham, President and CEO of comScore Networks. "The good news for search companies is that the utilization of search queries for advertising purposes continues to increase. In December 2005, 57.2 percent of search query results included a sponsored advertisement, up from 49.1 percent a year earlier. Additionally, the international search market continues to be strong, with a growth rate of 34 percent based on comScore's December 2005 international data. As a result, search revenue growth will significantly outpace search query growth. At the same time the slowdown in the overall growth rates is unmistakable."

For more information on comScore qSearch, please e-mail or call (650) 244-5412.

About comScore Media Metrix

comScore Media Metrix, a division of comScore Networks, provides industry-leading Internet audience measurement services that report - with unmatched accuracy - details of online media usage, visitor demographics and online buying power for the home, work and university audiences across local U.S. markets and across the globe. comScore Media Metrix continues the tradition of quality and innovation established by

its Media Metrix syndicated Internet ratings - long recognized as the currency in online media measurement among financial analysts, advertising agencies, publishers and marketers - while drawing upon comScore's advanced technologies to address important new industry requirements. All comScore Media Metrix syndicated ratings are based on industry-sanctioned sampling methodologies.

About comScore Networks

comScore Networks provides unparalleled insight into consumer behavior and attitudes. This capability is based on a massive, global cross-section of more than 2 million consumers who have given comScore explicit permission to confidentially capture their browsing and transaction behavior, including online and offline purchasing. comScore panelists also participate in survey research that captures and integrates their attitudes and intentions. Through its proprietary technology, comScore measures what matters across a broad spectrum of behavior and attitudes. comScore consultants apply this deep knowledge of customers and competitors to help clients design powerful marketing strategies and tactics that deliver superior ROI. comScore services are used by global leaders such as AOL, Yahoo!, Verizon, Best Buy, The Newspaper Association of America, Tribune Interactive, ESPN, Fox Sports, Nestlé, MBNA, Universal McCann, the United States Postal Service, Merck and Orbitz. For more information, please visit www.comscore.com.