DAV Resources
Hosts Cadaver, DAVLib, Goliath, Mod dav, Neon, and PerlDAV projects. Also includes news, a FAQ, links to other software and articles.

RFC2518
This document specifies the Distributed Authoring Protocol, a set of headers and methods which extend the Hypertext Transfer Protocol to provide capabilities for overwrite prevention (locking), properties, and namespace management.

IETF WEBDAV Working Group
Overview, mailing lists, draft documents, links to related working groups and to implementations.