top 50 ad networks in U.S

  

 Top 50 U.S. Ad Networks by Unique Visitors, April 2009 (Courtesy of Revenue Magazine)

Rank	Ad Network	Unique Visitors (000)	Reach (%)
1	Platform-A**	176,455	91
2	Yahoo Network**	167,129	87
3	Google Ad Network**	164,518	85
4	ValueClick Networks**	160,307	83
5	Specific Media**	158,012	82
6	Fox audience Network**	149,249	77
7	Yahoo Sites	149,118	77
8	Google	148,511	77
9	24/7 Real Meda**	147,668	77
10	Traffic Marketplace**	143,519	74
11	Tremor Media	141,971	74
12	Microsoft Media Network**	139,674	72
13	Tribal Fusion**	138,274	72
14	Casale Media MediaNet**	137,884	71
15	interCLICK**	134,834	70
16	YuMe	134,608	70
17	Turn Inc**	134,028	69
18	Adconion Media Group	133,498	69
19	CPX Interactive**	130,370	68
20	Collective Network**	129,808	67
21	ADSDAQ (ContextWeb)**	123,534	64
22	Platform-A Video Network	121,949	63
23	AudienceScience	121,001	60
24	Burst Media**	116,727	61
25	Digital Broadcasting Group	112,646	56
26	MSN Windows Live	111,783	58
27	AOL Media Network	107,469	56
28	BrightRoll Video Network	99,911	52
29	Undertone Networks**	97,053	50
30	AdBrite**	91,033	47
31	YouTube*	89,697	47
32	Pulse 360**	82,574	43
33	Vibrant Media**	80,779	42
34	Centro	75,551	39
35	National Newspaper Network: Total U.S. Newspapers	74,415	39
36	Ask Network	73,491	38
37	Adify**	73,467	38
38	Kontera**	72,870	38
39	Monster Career Ad Network	72,225	37
40	Myspace.com*	70,954	37
41	Facebook	67,481	35
42	ITN Networks	66,578	35
43	Tatto Media**	63,379	33
44	MSN.com	57,753	30
45	IAC Ad Solutions	57,650	30
46	eBay	56,319	29
47	Glam Media	54,485	28
48	Amazon.com	52,058	27
49	National Newspaper Network: Top 25 Newspapers	50,644	26
50	Business.com	48,692	25

**Denotes an advertising network
*Denotes entity has assigned some portion of traffic to other syndicated entities.

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