Aegis Bicycles AMP Research
Airborne Direct Big Cheese Bikes
BMC Racing Boulder Bikes
Boulton Bicycles Cannondale
Catamount Dean Ultimate Bicycles
Diamondback Dogma Bikes
Fat City Cycles Gary Fisher
Giant Bicycles Girvin/ProFlex
GT Haro
Headland Ibis Cycles
Jet Designs KHS
Klein Kona
Litespeed Living Extreme
Marin Mountain Bikes Marzocchi
Merlin Titanium Mongoose
Moots Mountain Cycles
Raleigh Bicycles Retrotec Bicycles
Rocky Mountain Cycles Ross Bicycles
Schwinn Scorpio Bicycles
Softride Mountain Bikes Specialized
Spooky Cycles Titus Titanium
Trek Ventana Mountain Bikes USA
Voodoo Cycles Yeti

 

ACS Aheadset
Answer Products - clothing, shoes, and the infamous Manitou fork line. Avid Brakes
Bicycle Research Bontrager Cycles
Cane Creek Cantina
Cardiosport Cateye
Chris King Club Roost
Control Tech Cook Bros.
Crank Brothers Cycle Source Group - Distributors of smaller makers like Ameoba, DNM Forks, etc.
Dia-Compe DT Swiss - spokes galore.
Easton - aluminum manufacturers Exerstuff
Full Speed Ahead G-Shok
Girls Love Dirt Graber - bike racks.
Hayes Brakes - hydraulic brakes Hollywood Racks
Hutchinson Tires Icon Bike Parts
Ionic Cycles IRC
KnuckleBone Koobi
Kool-Stop Kooka - cranks
Kryptonite Lizard Skins
Magura Brakes Marzocchi
Marwi Mavic
Michelin - bridging into the bike tire arena. Nokian Tires
Onza Panaracer Tires
Pedro´s Park Tool
Paul Component Engineering Qranc
Race Face Real Product Design
Ritchey Logic Rock Shox
RST Suspension Sachs
Salsa Cycles Selle Italia Saddles
Selle San Marco Shimano
Sidetrak Sigma Sport
Specialty Racing Products Spline Drive
Spinergy Spin Wheels
Spot Bikes "One #%@$^& Speed!" SRAM - makers of GripShift
Sun Rims Surly
Syncros Syntace
Tamer Tektro
Third Eye Thudbuster
Titec Tioga
Topeak TwoFish Unlimited
Velo Saddles Velocity Rims
Vivo Sports - new mfg of derailleurs. Wellgo Pedals
White Industries White Lightning - top bike lube.
WTB - Wilderness Trail Bikes Zefal

 

Bell Helmets Camelbak - The ultimate in hydration technology.
Hi-Tec - outdoor footwear In-Motion - bike clothing
Jog Mate - some weird kind of protein goo. Pedros - The bike cleaning experts.
Pearl Izumi - Pioneers in racing jerseys. Powerbar - kinda cheesy site but its IRC and posts may turn into something good.
Sprockethead.Com - want to show off your bike lust all the time? grab a derailleur necklace. Stick 'Em Up Stickers - large selection of stickers for your ride, helmet, car, rack, dog, etc.
Swobo - more cool threads Velo Vacations - plan your next vacation on a bike.
Zoic - bike gear, thread