UIS Informatics Commission
- Encourages and facilitates the systematic collection and use of karst and related data on an international basis with workign groups devoted to survey and mapping, caver's dictionary and data exchange format. Includes calendar, newsletter, software, disc
- http://www.uisic.uis-speleo.org

International Union of Speleology
- Representing cavers from around the world with working groups devoted to protection and management, research, documentation, exploration and education. Includes calendar, abstracts, vacancies, history, guidelines and standards.
- http://www.uis-speleo.org/

International Society for Speleological Art
- ISSA's aim is to promote the artistic interpretation of caves and karst landscape. Membership, galleries, contact, activity and background information.
- http://www.issa.org.uk/

Cave Research Association (MAD)
- Located in Ankara, Turkey and a member of the Union of International Speleology. Promotes exploration and conservation. Includes meeting and contact information. [Turkish and English].
- http://www.mad.org.tr/

The Jamaican Caves Organisation
- Crew is dedicated to exploration, surveying and preservation. Includes trip reports, field notes, databases, photos and contacts.
- http://www.jamaicancaves.org/

Hong Meigui Cave Exploration Society
- Offers expeditions in China and other countries. Includes articles and stories, trip calendar, photos, survey data, and contact information.
- http://www.hongmeigui.net