Authoring WebDAV
You have found the way to WebDAV on Authoring:
DAV Resources - Hosts Cadaver, DAVLib, Goliath, Mod_dav, Neon, and PerlDAV projects. Also includes news, a FAQ, links to other software and articles.
IETF WEBDAV Working Group - Overview, mailing lists, draft documents, links to related working groups and to implementations.
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. Help build the largest human-edited directory on the web.