comScore Introduces New Service in U.K. to Provide Competitive Intelligence for Online Display Advertising Campaigns

Ad Operations OnlineFacebook Ranks as Top Display Ad Publisher and O2 Ranks as Top Advertiser in April, According to comScore Ad Metrix

LONDON, U.K. – comScore, Inc. (NASDAQ: SCOR), a leader in measuring the digital world, announced the U.K. launch of comScore Ad Metrix, a breakthrough service in digital media campaign planning and buying that provides comprehensive insight into where display ads are viewed online and the demographic composition of the audiences reached. The service captures multiple varieties of display advertising, including static banners, rich media and video ads.

“comScore Ad Metrix is the first online advertising measurement service in the U.K. to accurately account for the total number of display ads viewed online and attribute those views to the specific users exposed, as well as to the publishers displaying the ads and the advertisers responsible for their content,” said Mike Read, SVP and managing director, comScore Europe. “Never before have the tools associated with traditional media measurement been so closely aligned with online accountability metrics, and we are delighted to be able to offer a range of capabilities through this service including share of voice, ad clutter, ad exposed unique visitors, frequency and reach of ads, GRPs and publisher-level demographics.”

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Top 10 Online Display Ad Publishers
Facebook.com ranked as the top U.K. display ad publisher in April with 12.5 billion ad views (21.6 percent market share) reaching 22 million people online. Microsoft Sites ranked second with 3.8 billion ad views (6.5 percent), while eBay ranked third with 2.9 billion ad views (4.9 percent).

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Top 10 U.K. Online Display Ad Publishers*
Total U.K., Age 15+, Home & Work Locations**
April 2009
Source: comScore Ad Metrix
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Property                  Total Display    Share of   Advertising
Ad Views (MM)    Display    Exposed
Ads (%)    Unique
Visitors (000)
Total Internet                   58,105       100.0%         35,350
Facebook.com                     12,532        21.6%         21,988
Microsoft Sites                   3,758         6.5%         25,433
eBay                              2,868         4.9%         17,720
AOL LLC                           2,494         4.3%         13,827
Yahoo! Sites                      2,011         3.5%         20,178
Google Sites                      1,056         1.8%         24,904
Fox Interactive Media               825         1.4%          8,584
Autotrader.co.uk                    693         1.2%          3,836
Tagged.com                          438         0.8%          1,549
Amazon Sites                        411         0.7%         12,199
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*Reflects display advertising only, excludes small ads and house ads (<2,500 pixels in dimension).
**Excludes traffic from public computers such as Internet cafes or access from mobile phones or PDAs.

Top 10 Online Display Advertisers
The ranking of the top 10 display advertisers was led by telecom companies. With a significant digital advertising campaign promoting the availability of the iPhone 3G on contract, Telefonica O2 ranked as the top display advertiser in April 2009 with 1.1 billion ad views (1.9 percent market share) reaching 29.2 million people. Other top display advertisers included T-Mobile with 750 billion ad views (1.3 percent share), dieting service Oneweek.co.uk with 610 billion ad views (1.1 percent share) and Royal Mail Group.

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Top 10 U.K. Online Display Advertisers*
Total U.K., Age 15+, Home & Work Locations**
April 2009
Source: comScore Ad Metrix
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Property               Total Display   Share of    Advertising
Ad Views (000)  Publisher   Exposed
Ad Views    Unique
(%)         Visitors (000)
Total Internet             58,104,615     100.0%         35,350
Telefonica O2               1,128,236       1.9%         29,231
T-Mobile                      750,459       1.3%         28,715
Oneweek.co.uk                 610,255       1.1%         25,150
Royal Mail Group              575,444       1.0%         12,190
Orange Sites                  557,593       1.0%         26,483
Virgin Media                  545,004       0.9%         26,984
Sky Sites                     526,904       0.9%         25,849
British Telecommunications    394,958       0.7%         24,221
Microsoft Sites               379,732       0.7%         22,020
Camelot Group                 321,979       0.6%         19,635
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*Reflects display advertising only, excludes small ads and house ads (<2,500 pixels in dimension).
**Excludes traffic from public computers such as Internet cafes or access from mobile phones or PDAs.

About comScore
comScore, Inc. (NASDAQ: SCOR) is a global leader in measuring the digital world. For more information, please visit www.comscore.com/companyinfo