Caves
- Biospeleology
- Biospeleology the biology of caves, karst, and groundwater
- Bulletin Bibliographique Spéléologique
- Cave and Karst Terminology
- Cave Modeling - Todd R. Kincaid
- Cave Page
- Caver's Glossary and Tips
- Caves - Darklight Imagery
- Caves in Crete
- Caves of Scotland
- Caves Page of the Moscow State University
- Caving Canada
- Caving Definitions - A Glossary of Terms
- Caving in Greece - flash site with gallerys and desktop themes about caving in Greece
- Caving on Vancouver Island
- Glossary of Speleological and Caving Terms
- Institute of Speleology
- Karst and caves of Madagaskar
- Missouri Caves, Karst, and Springs
- National Caves Association
- National Speleological Society (NSS)
- Ohio Caverns
- Rajkova pecina - Rajko's cave (Serbia)
- Romanian Speleology
- Romanian Speleological Institute
- Speleological Atlas of Serbia
- Spéléologie et Préhistoire
- Speleology and climbing club ACE Belgrade
- Student Speleologic and Alpinistic Clubat Belgrade, Yugoslavia - Here you can learn about the karst of Yugoslavia: its geology, distribution and characteristics, along with the insight into some interesting karst areas. Of course, there is a list of deepest and longest Yugoslav caves, with the surveys and descriptions of the majority of them.
- Sudwala Caves
- Swedish Caves, Caving and Speleology
- The Biology of Caves, Karst, and Groundwater
- The Cave Life Page
- The Caver's Multi-Lingual Dictionary
- World Cave Database
