Mountain Bike: Resources for MTB Enthusiasts

Looking for information about mountain bikes? You don't have to search high and low for resources about mountain biking. This list has links to everything any mountain biker could need. The websites below provide trail descriptions of every state in the United States, the scoop on great mountain biking destinations around the world, mountain bike equipment reviews, photos, maps and much more.
Want to buy or rent a mountain bike? The domains have comprehensive nationwide directories of bike stores, mountain biking clubs, bicycle manufacturers and dealers, bike rentals, mountain bike tour operators, and related services.
Know of any other relevant website? Add it to the Mountain Bikes list along with its short summary.