Top ad carriers in June 2008

Rank	Property	Audience, 000	Reach %
	Total Internet	189,873	100%
1	Platform-A	170,312	90%
2	Yahoo! Network	158,064	83%
3	Google Ad Network	154,419	81%
4	Specific Media	148,311	78%
5	ValueClick Networks	141,915	75%
6	Yahoo!	138,426	73%
7	Tribal Fusion	137,569	72%
8	YuMe Video Network	134,864	71%
9	Google	131,697	69%
10	Casale Media Network	128,569	68%
11	adconion media group	125,339	66%
12	DRIVEpm	122,373	64%
13	interCLICK	118,905	63%
14	Traffic Marketplace	116,267	61%
15	AOL Media Network	110,841	58%
16	24/7 Real Media	109,135	57%
17	MSN-Windows Live	107,272	56%
18	Tremor Media	101,361	53%
19	ADSDAQ by ContextWeb	98,951	52%
20	CPX Interactive	88,911	47%
21	Turn, Inc	87,681	46%
22	Burst Media	84,246	44%
23	AdBrite	81,133	43%
24	Centro	76,733	40%
25	MYSPACE.COM	72,777	38%
26	Collective Media	72,390	38%
27	Vibrant Media	72,080	38%
28	Ybrant – Oridian – ADdynami	71,554	38%
29	NNN Total Newspapers: U.S.	67,530	36%
30	Gorilla Nation Media	66,866	35%
31	Undertone Networks	65,945	35%
32	YOUTUBE.COM	65,482	34%
33	MSN.COM Home Page	56,741	30%
34	EBAY.COM	56,698	30%
35	TattoMedia	56,616	30%
36	IAC Ad Solutions	53,385	28%
37	Ask Network	51,646	27%
38	Kontera	50,216	26%
39	MapQuest	48,422	26%
40	PrecisionClick	46,681	25%
41	AMAZON.COM	46,666	25%
42	NNN Top 25	44,926	24%
43	Business.com Network	44,709	24%
44	Real Cities Network	44,577	23%
45	IB Local Network	40,506	21%
46	FACEBOOK.COM	37,375	20%
47	Quadrant One	37,347	20%
48	EBAY.COM Home Page	37,061	20%
49	The Nabbr Network	37,039	20%
50	Clearspring Widget	36,495	19%
Source: comScore