ComScore started employing the notion of visits instead of pageviews in order to remove the penalty on sites that use high amount of AJAX to improve the user interaction. A visit in ComScore lingo is an interaction with a site within a 30 minutes interval. Therefore ComScore published the rating of top Internet sites based on the amount of visits per unique visitor.
| Top sites by visits per visitor in February 2007 | |
| Property | Visits |
| Total Internet Visits | 64.2 |
| Yahoo! Sites | 28.6 |
| Facebook.com | 23.6 |
| Microsoft Sites | 21.8 |
| Time Warner Network | 19.4 |
| Weatherbug Property | 17.7 |
| Google Sites | 17.7 |
| Fox Interactive Media | 16.9 |
| Comcast Corporation | 16.9 |
| EA Online | 13.6 |
| Earthlink | 12.1 |
| Source: ComScore | |