Light weight Backpacking Suppliers:

Six Moons Designs
Gossamer Gear
Henry Shires Shelters -Tarp Tents
ULA
Big Sky International
Western Mountaineering

Gear Specialists:

CMI

Bear Canisters:
Current list of approved containers by the SIBBG
Wild-ideas.net - creators of the Bearikade, the lightest animal resistant food canister available.

General Outdoor Suppliers:

Adventure 16
REI
Campmor

Climbing Suppliers:

Acme Climbing