Top U.S. Online Ad Providers, May 2011

Below, the top 20 U.S. online ad providers ranked by reach. Data are provided by comScore.

Top 20 U.S. Online Ad Providers by Reach, May 2011 (U.S., Home and Work)

Brand

 

Unique Audience (000) Reach (%)
Google Ad Network* 199,648 92.3
Yahoo Sites 188,763 87.3
AOL Advertising* 184,357 85.3
Yahoo Network Plus* 184,094 85.1
ShareThis 177,213 81.9
Turn Media Platform* 176,023 81.4
Google 173,982 80.5
ValueClick Networks* 171,704 79.4
Specific Media* 170,883 79.0
24/7 Real Media Global Web Alliance* 167,019 77.2
AdBrite* 159,762 73.9
Facebook 157,219 72.7
Collective Display* 156,224 72.2
Tribal Fusion* 152,690 70.6
Vibrant Media* 145,303 67.2
Burst Media* 144,144 66.7
AudienceScience* 142,975 66.1
Microsoft Media Network* 142,159 65.7
Fox Audience Network* 140,188 64.8
Traffic Marketplace* 139,861 64.7

Source: comScore 2011

*Ad network

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