http://www.cs.purdue.edu/homes/dole/bike.html
Bryn Dole's WWW Bicycle Lane isn't fancy, but reliably points to quality bicycle-related sites, whether competitive cycling, touring, equipment manufacturers, advocacy, or mountain biking is the focus. One interesting subdirectory links to online United States Cycling Federation (USCF) teams; another provides USCF membership forms. You'll also find several FTP sites, gophers, and mailing lists. The page contains six large JPEG images of famous moments in professional cycling history. Overall, a good resource.