Local:

Sawtooth National Forest Avalanche Center
Sun Valley Trekking
Sun Valley Heli Skiing
Saw Tooth Mountain Guides
Galena Lodge
Sun Valley Telemark
Backwoods
Elephants Perch
Blaine County Recreation District
Citizens for Smart Growth

Other Orgs:

Winter Wildlands Alliance
Idaho Skiers and Snowshoers Coalition
Backcountry Snowsports Alliance
Nordic United
High Desert Nordic Association

Publications:

Couloir Magazine
Backcountry Magazine
Off Piste Magazine
Backcountry Skiing
Cross Country Skier