Top U.S. Ad Networks, January 2009

Enid Burns | February 27, 2009 | 0 comments

AOL's Platform-A maintained its significant consumer reach in January of 91 percent, or over 173 million unique visitors to its network. ComScore measured a panel of 190.7 million unique visitors to ad networks and sites in its AdFocus rankings.

ComScore measures Internet usage from a global panel of home, work, and university Internet users.

Top 50 U.S. Ad Networks by Unique Visitor, January 2009
Rank	Ad Network	Unique Visitors (000)	Reach (%)	Rank	Ad Network	Unique Visitors (000)	Reach (%)
	Total	191,863	100
1	Platform-A**	174,586	91	26	AdBrite**	89,649	47
2	Yahoo network**	164,712	86	27	YouTube	82,772	43
3	ValueClick Networks**	160,261	84	28	Centro	81,559	43
4	Google Ad Network**	158,481	83	29	Vibrant Media**	79,908	42
5	Traffic Marketplace**	146,903	77	30	MySpace*	75,639	39
6	Yahoo sites	146,131	76	31	National Newspaper Network: total U.S. newspapers	74,800	39
7	Specific Media**	145,929	76	32	Ask network	74,742	39
8	Tribal Fusion**	143,869	75	33	Pulse 360**	71,075	37
9	Google	143,116	75	34	Gorilla Nation Media	68,684	36
10	24/7 Real Media**	141,604	74	35	IAC Ad Solutions	66,759	35
11	Tremor Media	136,867	71	36	Undertone Networks**	66,083	34
12	Casale Media**	136,772	72	37	Career Ad Network**	65,936	34
13	Turn Inc.**	132,949	69	38	ITN digital network	65,705	34
14	Adconian Media Group	130,717	68	39	Kontera**	64,928	34
15	interCLICK**	126,706	66	40	Tattoo Media**	61,677	32
16	CPX Interactive**	125,764	66	41	IB Local Network	58,414	30
17	DRIVEpm	125,255	65	42	eBay	57,520	30
18	ADSDAQ (ContextWeb)**	121,022	63	43	Adify**	57,380	30
19	Revenue Science**	114,122	59	44	Facebook	57,232	30
20	Digital Broadcasting Group	111,698	58	45	MSN.com	54,481	29
21	MSN Windows Live	111,695	58	46	Glam Media	55,293	29
22	Collective Network**	111,322	58	47	Amazon.com	54,562	28
23	Burst Media**	109,043	57	48	National Newspaper Network: top 25 newspapers	52,326	27
24	AOL Media Network	108,441	57	49	Business.com	51,586	27
25	BrightRoll	98,179	51	50	QuadrantONE	47,754	25
Notes: 1. Reach denotes the percentage of the total Internet population that viewed a particular entity at least once in August. 2. * denotes entity has assigned some portion of traffic to other syndicated entities. 3. ** denotes an advertising network. 4. 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