Top 50 US ad carriers in August 2008

RankPropertyAudience, 000Reach % Total Internet : Total Audience188,937100%1Platform-A170,72890%2Google Ad Network156,41583%3Yahoo! Network156,21283%4Specific Media152,50181%5ValueClick Networks150,81380%6Tribal Fusion142,84076%7Yahoo!139,80774%8Google136,48472%9YuMe Video Network129,87169%10Casale Media - MediaNet129,19568%11Traffic Marketplace128,89368%12Tremor Media - Potential Reach126,31467%13Adconion Media Group124,53266%1424/7 Real Media123,80866%15interCLICK122,47865%16Revenue Science121,89365%17DRIVEpm117,18862%18>CPX Interactive115,71061%19MSN-Windows Live111,25859%20AOL Media Network110,62359%21ADSDAQ by ContextWeb108,57457%22Collective Media107,94357%23Burst Media96,64851%24Turn, Inc94,04250%25Centro - Potential Reach81,83643%26Undertone Networks81,63943%27AdBrite81,31043%28MYSPACE.COM75,49140%29YOUTUBE.COM75,42540%30Vibrant Media74,79240%31NNN Total Newspapers: U.S.72,20238%32Gorilla Nation Media - Potential Reach66,12435%33Ybrant - Oridian - ADdynamix Network61,06632%34MSN.COM [...]

Rank Property Audience, 000 Reach %
  Total Internet : Total Audience 188,937 100%
1 Platform-A 170,728 90%
2 Google Ad Network 156,415 83%
3 Yahoo! Network 156,212 83%
4 Specific Media 152,501 81%
5 ValueClick Networks 150,813 80%
6 Tribal Fusion 142,840 76%
7 Yahoo! 139,807 74%
8 Google 136,484 72%
9 YuMe Video Network 129,871 69%
10 Casale Media - MediaNet 129,195 68%
11 Traffic Marketplace 128,893 68%
12 Tremor Media - Potential Reach 126,314 67%
13 Adconion Media Group 124,532 66%
14 24/7 Real Media 123,808 66%
15 interCLICK 122,478 65%
16 Revenue Science 121,893 65%
17 DRIVEpm 117,188 62%
18> CPX Interactive 115,710 61%
19 MSN-Windows Live 111,258 59%
20 AOL Media Network 110,623 59%
21 ADSDAQ by ContextWeb 108,574 57%
22 Collective Media 107,943 57%
23 Burst Media 96,648 51%
24 Turn, Inc 94,042 50%
25 Centro - Potential Reach 81,836 43%
26 Undertone Networks 81,639 43%
27 AdBrite 81,310 43%
28 MYSPACE.COM 75,491 40%
29 YOUTUBE.COM 75,425 40%
30 Vibrant Media 74,792 40%
31 NNN Total Newspapers: U.S. 72,202 38%
32 Gorilla Nation Media - Potential Reach 66,124 35%
33 Ybrant - Oridian - ADdynamix Network 61,066 32%
34 MSN.COM Home Page 58,727 31%
35 Ask Network 58,482 31%
36 EBAY.COM 58,303 31%
37 Pulse 360 57,646 31%
38 Kontera 55,288 29%
39 IAC Ad Solutions - Potential Reach 53,677 28%
40 Intergi - Potential Reach 52,461 28%
41 National Broadband Network 52,236 28%
42 IB Local Network 51,148 27%
43 NNN Top 25 49,070 26%
44 MapQuest 47,276 25%
45 AMAZON.COM 46,830 25%
46 AdOn Network 45,740 24%
47 TattoMedia 44,278 23%
48 QuadrantONE - Potential Reach 43,599 23%
49 EBAY.COM Home Page 41,831 22%
50 FACEBOOK.COM 40,959 22%
Source: comScore