Mountaineering

Discussion forum and chat for an international community of mountain climbers.
http://groups.yahoo.com/group/mountaineering2/

Zoner's Pub

Discussion forum with archives.
http://forums.delphiforums.com/zonerspub

UT Climbers

Discussion forum. (Utah)
http://groups.yahoo.com/group/utclimbers/

drexelClimbing

Trip reports and photos. Message board.
http://www.geocities.com/drexelclimbing/

Rock Climbing and Bouldering

Discussion forum and chat.
http://groups.yahoo.com/group/rockclimbingandbouldering/

New England Rock Club

Discussion forum. Chat. Photos. (New England)
http://groups.yahoo.com/group/nerockclub/

Anglo American Climbers

For American and English Climbers in East Anglia. Discussion forum and chat.
http://groups.yahoo.com/group/angloamericanclimbers/

Bay Area Mountaineering Society

Discussion forum and chat. (San Francisco, California)
http://groups.yahoo.com/group/bayareamountaineeringsociety/

Bay Area Rock

Discussion forum. Chat. (San Francisco Bay area, California)
http://groups.yahoo.com/group/bayarearock/

Climb For Christ

For young climbers, Christian or not. Discussion forum and chat.
http://groups.yahoo.com/group/climbforchrist/

DC Outdoors

Discussion forum and chat.
http://groups.yahoo.com/group/dcoutdoorrockclimbing/

Flatlander

"A cardboard box for the climbing homeless." Discussion forum and chat.
http://groups.yahoo.com/group/flatlander/

KlimbOn

Discussion forum and chat.
http://groups.yahoo.com/group/klimbon/

Rainier

Discussion forum and chat.
http://groups.yahoo.com/group/rainier2/

Sport Climbing

For sport climbing. Discussion forum and chat.
http://groups.yahoo.com/group/sportclimbing2/

Stonewall Climbers

Gay, lesbian, and bisexual online club. Discussion forum and chat.
http://groups.yahoo.com/group/stonewallclimbers/

Utah's Climbing Network

Discussion forum. Chat. (Utah)
http://groups.yahoo.com/group/utahsclimbingnetwork/

MSN Group: Rock Climbing

Discussion forum with special board for Washington.
http://groups.msn.com/RockClimbing

MSN Groups: Mountaineering

Discussion forum covers mountaineering, rock climbing, and ice climbing.
http://groups.msn.com/Mountaineering

MSN Groups: Rock Climbing Rocks

Discussion forum with photos.
http://groups.msn.com/RockClimbingRocks

Climbing Talk

Forums for rock climbing, bouldering, aid climbing, mountaineering, and ice climbing.
http://www.climbingtalk.com

Rock Climbing.com Forums

Includes general discussion forums as well as special forums for ice climbing, aid climbing, bouldering, trad climbing, and competition climbing.
http://www.rockclimbing.com/forums/

Climbing News Mailing List

Mailing list plus archives. Discussion forums.
http://www.climbingnews.org/

Red River Climbing

A message board with general topics and a focus on climbing at the Red River Gorge, Kentucky.
http://www.redriverclimbing.com

Utah Climbers

A public forum for Utah based climbers.
http://www.utahclimbers.com