The top 50 ad networks in February by unique visitor.
The top spots in comScore's AdFocus rankings, which tracks ad networks and Web properties, showed little movement from January. Platform-A captured 173 million unique visitors; Yahoo saw 163 million uniques; and ValueClick served 157 million uniques. Specific Media came up a spot (143 million uniques), taking a space previously occupied by Yahoo sites. Google came up two pegs (141 million uniques), displacing Tribal Fusion and Traffic Marketplace.
Microsoft consolidated its ad network properties under Microsoft Media Network U.S., dropping the DRIVEpm identity. In February It held at 123 million unique visitors. In January DRIVEpm had 126 million uniques. In all, the number of unique visitors to each network, and percent reach to all properties, tended to be smaller than in January.
ComScore measures Internet usage from a global panel of home, work, and university Internet users.
|Top 50 U.S. Ad Networks by Unique Visitor, February 2009|
|Rank||Ad Network||Unique Visitors (000)||Reach (%)||Rank||Ad Network||Unique Visitors (000)||Reach (%)|
|3||ValueClick Networks**||157,753||82||28||Vibrant Media**||75,291||39|
|4||Google Ad Network**||156,481||81||29||Undertone Networks**||75,143||39|
|5||Yahoo sites||144,304||75||30||YuMe Video Network||74,858||39|
|6||Specific Media**||142,774||74||31||Monster Career Ad Network**||74,515||39|
|8||Traffic Marketplace**||139,372||73||33||National Newspaper Network: total U.S. newspapers||71,664||37|
|9||Tribal Fusion**||137,876||72||34||Ask Network||71,343||37|
|10||24/7 Real Media**||137,409||71||35||TattoMedia**||71,262||37|
|12||Casale Media-MediaNet**||131,982||69||37||Pulse 360**||68,035||35|
|14||Adconian Media Group||124,792||65||39||Gorilla Nation||63,647||33|
|15||Microsoft Media Network U.S.**||123,363||64||40||ITN Digital Networks||61,336||32|
|17||Turn Inc**||121,483||63||42||IAC Ad Solutions||58,425||30|
|21||Revenue Science**||108,259||56||46||Glam Media||51,121||27|
|22||MSN Windows Live||107,495||56||47||Amazon.com||50,067||26|
|23||Digital Broadcasting Group||106,408||55||48||National Newspaper Network: top 25 newspapers||49,112||26|
|24||AOL Media Network||105,016||55||49||Business.com||47,501||25|
|25||BrightRoll Video Network||94,218||49||50||Snap Shots Network**||46,101||24|
1. Reach denotes the percentage of the total Internet population that viewed a particular entity at least once in February.
2. ** denotes an advertising network.
3. The Platform A ad network is an aggregation of ad servers used by the following individual advertising network entities: Advertising.com, Tacoda, AOL, Quigo, and Userplan.
|Source: comScore, 2009|
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