Thank R1 Master for this one :thumbup

International
MotoGP / Grand Prix World Championship - www.motogp.com (http://www.motogp.com/)

Isle of Man TT - www.iomtt.com (http://www.iomtt.com/)

World Endurance Championship - www.worldendurance.com (http://www.worldendurance.com/)

WSBK / World Superbike - www.worldsbk.com (http://www.worldsbk.com/)

National
All-Japan Roadrace Championship - www.r2-1.com (http://www.r2-1.com/)

AMA / AMA US Superbike Championship USA - www.amasuperbike.com (http://www.amasuperbike.com/)

AHRMA / American Historic Racing Motorcycle Association - www.ahrma.org (http://www.ahrma.org/)

Canadian Superbike Championship - www.cdnsuperbike.com (http://www.cdnsuperbike.com/)

CCS, ASRA / Championship Cup Series, American Sportbike Racing Association - www.ccsracing.com (http://www.ccsracing.com/)

USCRA / United States Classic Racing Association - www.race-uscra.com (http://www.race-uscra.com/)

USGPRU - 125cc/250cc GP Road Racing National Championships - www.usgpru.net (http://www.usgpru.net/)

WERA - www.wera.com (http://www.wera.com/)

Regional
AFM / American Federation of Motorcyclists - www.afmracing.org (http://www.afmracing.org%20/)

AHRMA / American Historic Racing Motorcycle Association - www.ahrma.org (http://www.ahrma.org/)

CMRA / Central Motorcycle Roadracing Association - www.cmraracing.com (http://www.cmraracing.com/)

CRA / Central Roadracing Association, Inc. - www.cra-mn.com (http://www.cra-mn.com/)

HRRA / Hawaii Road Racing Association - www.hrra.net (http://www.hrra.net/)

LRRS / Loudon Road Racing Series - www.lrrsracing.com (http://www.lrrsracing.com/)

MRA / Motorcycle Roadracing Association - www.mra-racing.org (http://www.mra-racing.org/)

OMRRA / Oregon Motorcycle Road Racing Association - www.omrra.com (http://www.omrra.com/)

SMRI / Sandia Motorcycle Roadracing, Inc. - www.smri-racing.org (http://www.smri-racing.org/)

Team Promotion's GP Moto Cup Series - www.teampromotion.com (http://www.teampromotion.com/)

WMRRA / Washington Motorcycle Road Racing Association - www.wmrra.com (http://www.wmrra.com/)

WSMC / Willow Springs Motorcycle Club - www.wsmcracing.com (http://www.wsmcracing.com/)

Masters of the Mountains Series at Miller Motorsports Park - http://www.utahsba.com/

U.S. Dirt Bike Racing

http://www.amamotocross.com (http://www.amamotocross.com/)

http://www.amadirectlink.com (http://www.amadirectlink.com/) (General reference)

http://www.amadirectlink.com/amrace/torace.asp (How to get into racing)

http://arenacross.com/

http://supercross.com/

masters of the mountains series at miller motorsports park
http://www.utahsba.com/

sweet thanks for the links:rock

Hey now, let's not go thinking that it's only about road racing. MX has a large following as well. ;)

http://www.amamotocross.com

http://www.amadirectlink.com (General reference)

http://www.amadirectlink.com/amrace/torace.asp (How to get into racing)

http://arenacross.com/

http://supercross.com/

There's quite a few I'm missing, but those are the big ones I know of.

Got it Fjorn, good catch. :mrgreen