In September 2006, Advertising.com claimed the number one position in the Ad Focus ranking for the 29th consecutive month, reaching 84% of the US population online. CPX Interactive enjoyed a strong debut at number nine, reaching more than 96 mln Americans, or 56% of the US online population. ESPN moved up four spots to number 38, while EA Online Syndicated Games and Real.com entered the ranking at numbers 49 and 50, respectively.
| Top ad carriers in September 2006 | |||
| Rank | Property | Unique Visitors (000) | Reach % |
| Rank | Total Internet Users | 173,428 | 100% |
| 1 | Advertising.com | 145,835 | 84% |
| 2 | ValueClick | 129,674 | 75% |
| 3 | Yahoo! | 128,042 | 74% |
| 4 | Tribal Fusion | 114,498 | 66% |
| 5 | AOL Media Network | 110,912 | 64% |
| 6 | Casale Media | 107,798 | 62% |
| 7 | 103,433 | 60% | |
| 8 | MSN-Windows Live | 101,888 | 59% |
| 9 | CPX Interactive | 96,397 | 56% |
| 10 | Vendare Media | 95,713 | 55% |
| 11 | Burst Media | 89,690 | 52% |
| 12 | AOL | 87,981 | 51% |
| 13 | 24/7 Real Media | 87,092 | 50% |
| 14 | YAHOO.COM | 86,044 | 50% |
| 15 | Blue Lithium | 74,193 | 43% |
| 16 | EBAY.COM | 71,096 | 41% |
| 17 | PrecisionClick | 67,049 | 39% |
| 18 | Tremor Network | 66,213 | 38% |
| 19 | AdBrite | 61,547 | 35% |
| 20 | DRIVEpm | 60,815 | 35% |
| 21 | Gorilla Nation | 59,168 | 34% |
| 22 | MYSPACE.COM | 55,849 | 32% |
| 23 | MSN.COM | 55,296 | 32% |
| 24 | Ask Network | 54,842 | 32% |
| 25 | AdDynamix.com | 43,561 | 25% |
| 26 | EBAY.COM | 39,975 | 23% |
| 27 | ContextWeb | 37,261 | 21% |
| 28 | Vibrant Media | 36,939 | 21% |
| 29 | Undertone Networks | 36,821 | 21% |
| 30 | ABOUT.COM | 34,761 | 20% |
| 31 | Business.com | 26,114 | 15% |
| 32 | Lycos Network | 25,447 | 15% |
| 33 | CNN | 24,449 | 14% |
| 34 | Disney Online | 23,377 | 13% |
| 35 | CareerBuilder | 22,507 | 13% |
| 36 | WEATHER.COM | 21,990 | 13% |
| 37 | YOUTUBE.COM | 20,759 | 12% |
| 38 | ESPN | 20,385 | 12% |
| 39 | IMDB.COM | 19,050 | 11% |
| 40 | GameDaily | 18,607 | 11% |
| 41 | WebMD | 17,188 | 10% |
| 42 | Vendare Media | 16,990 | 10% |
| 43 | SuperPages | 16,361 | 9% |
| 44 | EXPEDIA.COM | 15,898 | 9% |
| 45 | ARTISTdirect | 15,745 | 9% |
| 46 | WeatherBug | 15,278 | 9% |
| 47 | Travelocity All | 14,929 | 9% |
| 48 | ClassMates.com | 14,926 | 9% |
| 49 | EA Online | 14,683 | 8% |
| 50 | REAL.COM | 14,561 | 8% |
| Source: comScore | |||