Anglo American Climbers - For American and English Climbers in East Anglia. Discussion forum and chat.

Climb For Christ - For young climbers, Christian or not. Discussion forum and chat.

Flatlander - "A cardboard box for the climbing homeless." Discussion forum and chat.

KlimbOn - Discussion forum and chat.

Mountaineering - Discussion forum and chat for an international community of mountain climbers.

Stonewall Climbers - Gay, lesbian, and bisexual online club. Discussion forum and chat.

Sport Climbing - For sport climbing. Discussion forum and chat.

Utah's Climbing Network - Disussion forum. Chat. (Utah)

Women on the Wall - For women. Discussion forum and chat.

Bay Area Rock - Discussion forum. Chat. (San Francisco Bay area, California)

Bay Area Mountaineering Society - Discussion forum and chat. (San Francisco, California)

Rainier - Discussion forum and chat.

Southern Indiana Mountaineers - For "hikers and climbers from around the world." Discussion forum and chat.

DC Outdoors - Discussion forum and chat.

Zoner's Pub - Discussion forum with archives.

New England Rock Club - Discussion forum. Chat. Photos. (New England)

UT Climbers - Discussion forum. (Utah)

drexelClimbing - Trip reports and photos. Message board.