Bike industry pals::
Seven Cycles - The East Coast Kings of Titanium.
Hutchinson - Those Frenchies make good tires!
Shimano - Making bike components longer than Campy.
Giro - Protect your noggin'...
Mavic - Those Frenchies make good rims and wheels too!
Smith Optics - Can you see me now?
Eriksen Cycles - Custom bikes featuring Maverick components
Niner - A great builder of 29er bikes
Wily Cycles - 29er specialists
Spot Brand - Great single speeds
Deuter - Stay hydrated in style

Advocacy::
International Mountain Bike Association - THE group for off-road cycling advocacy
Boulder Mountain Bike Alliance - Getting things done on the Front Range
Bicycle Colorado - One of the best state cycling advocacy groups
Bikes Belong - Keeping bikes a viable part of the U.S. transportation mix
Sierra Buttes Trail Stewardship - These guys know how to keep mountain biking alive
Southern Off-Road Bicycle Association - Keeping mountain biking strong in the South

Media::
MTBR - You can find it all here
BIke Magazine - Great mag...fantastic photos & journalism
Dirt Rag - An interesting view of the bike scene
VeloNews - The top bike racing journal

Adventure::
Epic Rides - Outrageous mountain biking in British Columbia
Elk River Touring Center - West Virginia mountain biking heaven
Adventure Cycling Association - Lots of great ride choices

Other great sites::
Oskar Blues Brewery - For after the ride...
Ecosse Motorcycles - The finest motorcycles built