Adventure Sports - Covers activities such as mountain biking, surfing, rock climbing, sailing, snowboarding and surfing.

Air Above Water - Information about cliff jumping. Includes photos, jumpers profiles, and directions to each jump site.

Camp Woodward - Features tips and tricks for inline skating, skateboarding, and freestyle BMX racing.

Ekstremsportveko - Norwegian extreme sports week involving base jumping, skydiving, paragliding, rafting, kayak, climbing, and mountainbike. Includes photos, results, videos, and sign up information.

EXPN.com - Online version of ESPN's action sports network covering skateboarding, snowboarding, surfing, inline skating, BMX, Motocross and X Games. Includes photos, events, tricks and tips, athlete columns, biographies, videos, and contests.

Extreme Bros - Features BMX, climbing, skateboarding, snowboarding, surfing and wakeboarding. Includes news, events, forums, photos, videos, tricks and tips.

Federation for Sport at Altitude - Covers high-altitude sports such as skyrunning, skyski, skybike and sky raid. Calendar of upcoming events, related links, news items and membership details.

Grindco Productions - Specializes in all aspects of extreme sports entertainment; from conception to marketing. Specializes in skateboarding, snowboarding, ski jumping, BMX, FMX and personal watercraft racing.

International Gravity Sports Association - Founded to support downhill inline skating, street luge, buttboarding, downhill skateboarding, and gravity biking. Includes news, rules, events, rider interviews, and links to related sites.

Kiiking - A new sport-art from Estonia. Features history, events, mission, photo gallery and services.

Ripboard - Features photos, video clips, general information, and equipment of riverboarding whitewater at face level.