American Alpine Institute homepage I went on my first and so far only climb with these guys. So I'm a lifetime fan
National Outdoor Leadership School NOLS offers great classes well worth the money considering they are like a month long, scholarships available.
Guide service mtnguide.NET NOT to be CONFUSED with mtnguide.COM which is AAI
American Mountain Guides Association
Bill Blumberg's Cascade Mountaineering Page This guy has a great page, It inspired me to do this one
Great page by a person who has climbed all over the world.
The Mountain Zone Good stuff on all mountain sports they also have a mountain photography section
Mountaineering.net All around good page
Great Outdoor Recreation Pages
ClimbNET Based mostly on Rock Climbing
A cool Internet Climbing Magazine
Rock and Ice Page based in the United Kingdom
REI - Mountaineering Equipment What can I say it's REI and I love REI so REI is the place to be
Mountian Equipment Co-Op Based in Canada so you get good deals with the exchange rate if you live in the US
ewalker.com Another Gear Page
BlackDog Equipment Based in Colorado