French-Verbs.com

The Cave of Lascaux
Interactive exploration of this prehistoric site, with illustrations of the artwork on its walls and roof. [English, French, German and Spanish]
www.culture.gouv.fr/

Wikipedia: Cave Painting
Encyclopedia article describes the different discoveries and the conclusions that have been made about the people who created them.
en.wikipedia.org/

Chauvet-Pont-d'Arc Cave
Describes the discovery of this cave in France, with details of the research and images of the paintings. [English, French and Spanish]
www.culture.gouv.fr/

Cave Art: 32,000 BC - 11,000 BC
Provides an illustrated article on the history of cave paintings on stamps.
arthistory.heindorffhus.dk/

Cave Data Exchange Format Working Group
Aiming to establish a hardware and software independent format for the transfer and archiving of speleological data.
www.cavexml.uis-speleo.org/