An extensive resource of climbing routes and information, including the ability to publish miniguides to climbing sites and a strong forum community.
The most exhaustive listing of North American climbing areas yet published, essential for any travelling climber. No longer an active website, the book can be searched on Google Books (linked above).
GPS locations and directions to various national climbing destinations, including Yosemite and Sonora Pass destinations.
Article in Climbing magazine from 2000 about the adventure climbing available at Calaveras Dome.
International website with routes, beta, forums, and all sorts of community connection. Lots of coverage of Calaveras Domes.
One of the most extensive databases of climbing locations on the web, includes many local area obscurities next to more well known areas.