Infiterra Sports LLC.

– Michigan adventure racing including cycling, canoeing, triathlons, rappelling, climbing, orienteering, and other adventure sports.

Odyssey Adventure Racing

– Extreme, long and short-distance racing and training provided by the people who have done the races.

Rattlesnake Racing Texas Adventure Racing

– Adventure Racing site with a Texas race calendar, race information and links to other adventure racing sites.

SleepMonsters.com

– Worldwide portal with news, events, race reports, calendar, forum, photos, team and racer profiles, and training articles and advice. Also provides special sections for Australia, Canada, United Kingdom, and United States.

The South African Adventure Racing Site

– A site for South African adventure racers, dedicated to news, events, clubs, articles and reports.

baarbd.org – Bay Area Adventure Racing Babes and Dudes

– Adventure racing portal serving Northern California. News, calendar, forums, AR glossary, email list, teams, athletes, races, cross-training, gear and nutrition. Focuses on connecting athletes, race directors and vendors.