California Underground Online Exhibits An overview of the formation of caves, cave conservation, photography and wildlife together with local educational resources. Diagrams, pictures and slide shows. http://www.museumca.org/caves/onli_realm.html Museumca.org~Site InfoWhoisTrace RouteRBL Check
World Cave Database A list of long and deep caves from all around the world. Listed by depth, length and country. http://www-sop.inria.fr/agos-sophia/sis/DB/database.html Inria.fr~Site InfoWhoisTrace RouteRBL Check
U.S. Cavers Forum Discussion forums including caving, the NSS, the study of speleology, cave conservation and management, bats and gear. http://nssmembersforum.proboards28.com/ Proboards28.com~Site InfoWhoisTrace RouteRBL Check
The Virtual Cave A wide-ranging introduction to the geology of caves. Organised by geological feature with pictures and clickable virtual maps. http://www.goodearthgraphics.com/virtcave/ Goodearthgraphics.com~Site InfoWhoisTrace RouteRBL Check
Caving From Spadout Articles on the terminology, techniques and gear used for caving. Discussion boards, editable information, feedback and links. http://www.spadout.com/wiki/index.php/Caving Spadout.com~Site InfoWhoisTrace RouteRBL Check
Cavechat.org NSS discussion forum for US cavers including sections for cave diving, news, conservation, equipment, photography, rescue and surveying. http://forums.caves.org/ Caves.org~Site InfoWhoisTrace RouteRBL Check