| • | 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. |
| • | Cave and Karst Terminology - An extensive glossary of speleological terms from the Australian Speleological Federation. |
| • | Ozcavers Mailing List - Aiming to get cavers communicating with each other on a regular basis about all matters caving. |
| • | Speleolabs - Apres-cave lifestyle enhancement. Pictures, chat, news, a different outlook on the sport of caving. |
| • | Speleomania - Includes caving discussion forums, news, views and resources. |
| • | The Caving Pages - An introduction to caving, cave types and conservation together with links to many caves and organisations around the world. |
| • | The Virtual Cave - A wide-ranging introduction to the geology of caves. Organised by geological feature with pictures and clickable virtual maps. |
| • | UIS International Speleo Calendar - Events around the world. |
| • | World Cave Database - A list of long and deep caves from all around the world. |
