Harley Davidson [ http://www.harley-davidson.com/wcm/Content/Pages/home.jsp?locale=en_US ]

Yamaha [ http://www.yamaha-motor.com/ ]

Zuzuki [ http://www.suzukicycles.com/ ]

CycleTrader [ http://www.cycletrader.com/ ]

Bikers Choice [ http://www.bikerschoice.com ]
Parts, accessories, and apparel for the Harley-Davidson aftermarket.

Riders Discount [ http://www.ridersdiscount.com ]
Offers motorcycle accessories, apparel, and performance parts.

Cycle Shop USA [ http://www.cycleshopusa.com ]
One-stop source for metric motorcycle parts and accessories and aftermarket Harley parts, as well as helmets, apparel, covers, tools, batteries, and more.

Moto Trento [ http://www.mototrento.it ]
Motocycle portal, dedicated to Trentino Alto Adige in north of Italy. The website consist in a forum area talking on motorcycles, a free announce board sorted in categories, news from Trento on motocycles events and a little directory containing the shops around Trento