洞穴学是一门科学的研究，研究洞穴，喀斯特地貌特征，结构，物理性质，化学性质，历史，生命形式和形成过程(speleogenesis)和随时间而改变(speleomorphology)。探索洞窟有时也是休闲活动，洞穴学和探索往往相连。洞窟是一个跨学科的领域，结合化学，生物学，地质学，物理学，气象学和制图的知识来开发复杂的洞穴的，同时亦是不断发展的系统。
- Different Types of Erosion （页面存档备份，存于互联网档案馆）
- National Speleological Society （页面存档备份，存于互联网档案馆）
- The Virtual Cave （页面存档备份，存于互联网档案馆）, an online guide to speleothems
- Biospeleology; The Biology of Caves, Karst, and Groundwater （页面存档备份，存于互联网档案馆）, by Texas Natural Science Center, the University of Texas at Austin and the Missouri Department of Conservation
- Speleogenesis Network, a communication platform for physical speleology and karst science research
- National Cave Research and Protection Organization （页面存档备份，存于互联网档案馆）, India
- cave-biology.org Cave biology, biospeleology in India
- Cave Biota; an evolving "webumentary", sponsored by Hoosier National Forest and Indiana Karst Conservancy
- IJS – Home Page (International Journal of Speleology) (in English, Italian, French, German, and Spanish)
- Caving News （页面存档备份，存于互联网档案馆）, Daily news and articles on caves, caving, speleology, karst and other information for cavers.
