Challenge Events - the multi-sport endurance specialists - Challenge Events runs Australia's toughest multi-sport endurance events - the NSW JLL Challenge and the Victorian JLL Challenge.

Vector Rope Rigging Specialists - Specializing in rope elements for adventure racing. Based in Burlington, Canada.

Adventure Racing - AR Extreme Ltd - Dedicated to the sport of adventure racing, a team-based expedition race taking place around the world in the style of Eco-Challenge. in AR, teams race for a week on mountain bikes, kayaks, rafts, and on foot through mountains and glaciers.

ARWorld Online - Resource for racers, spectators and sponsors.

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

DarkENDS Illumination Systems - Darkends manufactures and designs the highest quality, Headlamp and Bicycle light systems

Rocky Mountain Triathlete - Adventure and multisport news in the Rockies.

Adventure Racing - Getting started, or explaining, Adventure Racing with links and stuff.

Eventrate.com - Site dedicated to news and reviews of endurance, ultra and adventure races - with product reviews, discussion forums, training advice and more.

Green Extreme Outdoors - The essential site for Adventure Racing and Endurance Sports. Events from around the world, plus on-line store for adventure essential gear including Buff multi-functional headwear.

iSportsDigest.com/Adventure Racing - A directory containing links to a large number of Adventure Racing sites. Updated regularly.

HairyScary Adventure Racing - offers information, tips, links, event calendar, and training for individuals and team building oriented to the sport of adventure racing.

Adventure Racing Web Guide - A growing resource directory. Teams, races, gear, schools, disciplines. Adding link is free if it's about adventure racing.

Adventure Sports Online's guide to Adventure Racing, Multisport - Adventure Race and Multisport Directory with how to information, equipment lists, races and clubs.

TransBorneo Action Challenge - An adventure challenge in Borneo including sea kayaking, mountain biking, cycling, off-road driving, and Maylaysian native sports. Includes sponsorship information, event description, prizes and awards, course preview, registration, schedule, rules, and contacts. To begin November 1, 2001.

Active.com -- Adventure Racing - Adventure Racing/Eco-Challenge racing and training information, online registration for national and world-wide adventure races, race coverage, and message boards for adventure racing enthusiasts.

Tough Guy Information - Contains information about the "Tough Guy" series of U.K. events. Includes voting, pictures, statistics, a message board and a calendar of events.

WorldAR Dedicated to adventure racing - WorldAR Dedicated to adventure racing and endurance sports. International teammate and race event finder. Training help and information.