Top Online Automotive Destinations, US at Home Week ending Oct. 10, 2004
| Site | Unique Audience (000) | Active Reach (%) |
| eBay Motors | 2,702 | 2.57 |
| AOL Auto | 912 | 0.87 |
| AutoTrader.com | 621 | 0.59 |
| Kelley Blue Book | 574 | 0.55 |
| MSN Autos | 442 | 0.42 |
| Ford | 440 | 0.42 |
| Autobytel | 407 | 0.39 |
| Edmunds.com | 399 | 0.38 |
| automotive.com | 383 | 0.36 |
| AAA | 359 | 0.34 |
Source: Nielsen//NetRatings NetView