Encyclopaedia Speleologica Practicorum
- An extensive encyclopedia about caves and karst, people, techniques and cultural phenomena connected with caves.
- http://www.speleoencyclopedia.com/encyklopedia_start_eng.php

Karst Link Page
- Large collection of links to web sites about karst and the study of karst around the world. Page is maintained by The Association of Polish Geomorphologists.
- http://www.sgp.org.pl/spec/linkk.html

Dye Tracing
- Explains the process of using dyes for cave tracing, finding groundwater contaminants, wellhead protection programs, tracking sewer leaks and mapping pipelines. Provides information about the technique, and case histories.
- http://www.dyetracing.com/dyetracing/dyetrace.html

Cave and Karst Terminology
- An extensive glossary of speleological terms from the Australian Speleological Federation.
- http://home.mira.net/~gnb/caving/papers/jj-cakt.html

Karst in British Columbia
- Discusses origin and distribution of karst landscapes and caves in this Canadian province, ecological aspects, aboriginal uses, recreation and tourism, and management and protection.
- http://www.for.gov.bc.ca/hfp/publications/00192/index.htm

Sinkholes and the Engineering and Environmental Impacts of Karst
- Information about past and future conferences held by PELA based in Tennessee, USA.
- http://www.asce.org/conferences/karst2003/format.cfm

Canadian Karst Resources and Issues
- Discussions, papers, glossary of terminology as well as Canada related links.
- http://www.cancaver.ca/conserv/

Glossary of Karst Related Terms
- Compiled by Caving Canada.
- http://www.cancaver.ca/docs/glossary.htm

Misconceptions About Caves and Karst
- Discusses common misunderstanding of the processes that operate in karst terranes and makes suggestions for improving public education.
- http://www.nckms.org/pdf/kastning.pdf

Cave Gate Airflow Disturbance
- An investigation into the effect of cave gates on cave entrance airflow.
- http://www.nckms.org/pdf/roebuck.pdf

British Cave Research Association
- Promotes the study of caves and associated phenomena. Information about the organization and its activities; with online contents of several publications.
- http://www.bcra.org.uk/

Missouri Caves, Karst, and Springs
- A primer on karst terminology and the processes that form this type of topography.
- http://www.mospeleo.org/scat.php?id=46

Navassa Island: A Photographic Tour of Geology
- U.S. Geological Survey photos illustrate geologic features related to early karst development on this coral island.
- http://coastal.er.usgs.gov/navassa/geology/

3-D Modeling of Phreatic Karst Caves
- Reports on research on the visualization and quantification of cave geometry, illustrated by examples from Turkey and Florida.
- http://research.gg.uwyo.edu/kincaid/3dcave.htm

West Virginia Cave Conservancy
- Dedicated to conservation and preservation of karst resources. Includes information about the state's caves, conservation techniques, educational programs, and links.
- http://www.wvcc.net/

Karst Research Group, University of South Florida
- Project descriptions, online papers, studies ranging from the Caribbean to Israel.
- http://uweb.cas.usf.edu/~vacher/karsthome.htm

Australasian Cave and Karst Management Association
- Association of cave and karst managers from Australia, New Zealand, and other Asia/Pacific countries. Site provides information on individual caves, cave research in the region, and the organization's biennial conferences.
- http://www.ackma.org/

Speleogenesis
- Electronic journal of research on the origin and development of solution caves and other aspects of the evolution of karst topography and hydrology. Includes original papers and abstracts of items published in other journals.
- http://www.speleogenesis.info/

Jamaican Caves and Sinkholes
- GPS positions of Jamaican caves and sinkholes.
- http://www.jamaicancaves.org

Karst Dynamics Laboratory
- Institute based in Guilin, China undertaking research that includes the development of karst water resources, the carbon cycle in karst and geological hazards.
- http://www.karst.edu.cn/

Karsts of Australia
- Short discussion of karst development in Australia.
- http://wasg.iinet.net.au/karsts.html

Karst Information Pages
- Links to useful information relating to karst and its landscapes.
- http://www.dyetracing.com/karst/karst.html

Cave Research Foundation
- Dedicated to documenting, studying and protecting caves and karst resources, USA.
- http://www.cave-research.org/

Cave and Karst Science
- Peer-reviewed journal of research on geology and biology of caves and karst, published three times a year by the British Cave Research Association. Includes tables of contents and abstracts.
- http://www.bcra.org.uk/candks/

Karst of Serbia and Montenegro
- Descriptions, discussion, and maps of the geology and distribution of karst in this region.
- http://www.asak.org.yu/karst/yukarst.html

Center for Cave and Karst Studies
- Western Kentucky University research on all aspects of cave and karst studies with an emphasis upon solving environmental problems associated with karst in the Mammoth Cave region.
- http://caveandkarst.wku.edu/

Karst Hydrology
- A guide to cavern development and related environmental issues.
- http://www.dyetracing.com/karst/ka01000.html

National Speleological Society
- Advancing the study, conservation, exploration, and knowledge of caves. Although primary focus is on recreation, site has extensive information and links about caves and karst.
- http://www.caves.org/

Bulletin Bibliographique Speleologique
- Speleological Abstracts, an annual review of the world´s speleological literature.
- http://www.isska.ch/bbs/