The ATV Safety Institute provides useful information on rider training, riding gear, where to ride, and includes an entertaining 'Young Riders' section to educate kids on ATV Safety.
Internet classifieds for buying and selling of ATVs.
A family's diary of their experiences riding at different places. Reviews, photos, and a Discussion Board for ATVers. For the Wisconsin rider, a directory of ATV clubs, dealers, trail riding information, and a message board. A site for quick comparisons of the Cannondale, Raptor 660, the 400ex, and the awesome Bombardier DS 650. A thorough source of ATV-related links, with photos.