Climbing and hiking

Mount Everest: the British Story
Mammoth Rock (I want to go here).
The Climbing Dictionary
Mountain events, 2002
Shasta equipment checklist
motels around yosemite
The Sutter Buttes

Guide Services

Alpine Ascents International (Cascades, Ecuador, Alps)
Alpine Skills International (Sierras)
Altas Montanas Trekking in Peru; web page works only in IE
American Alpine Institute
Asian Trekking
CGM (Ecuador)
Doug Nidever (sierra)
Cosley/Houston (Alps, sierra)
Exum mountain guides (Tetons)
Jackson Hole Mountain Guides (Tetons)
International Mountain Guides
Mountain Adventure Seminars. Mostly winter programs, in the Sierras.
Rainier Mountaineering Inc.
Mt. Rainier Alpine Guides
Sierra Mountain Guides
Sierra Mountain Center skiing, climbing
Sierra Mountaineering International
Sierra Wilderness Seminars
Teton backcountry skiing
Climbing robot

Clubs

Rock Rendezvous (San Francisco)

Local Info

Tuolumne Meadows
SmithRock.com

General Info

SummitPost.com: highly recommended
Peakware.com: another user-driven site
Sierra Peak List
Amar Andalkar's Ski, Mountaineering and Climbing Site
Online topo maps

Equipment

Sierra trading post
Altrec.com
Any Mountain
Feathered friends

Rock-climbing shoe repair

RedRockResole $29/33 (thin/thick) + $8.50 (per rand) + $5 (shipping)

Other peoples' trip reports

Richard Steele skis Conness
Mt. Conness skiing
Whitney
Fancy Flash report on Meru climb