Web Document Authoring and Versioning. For an overview and many links, see http://www.webdav.org/.  For details on versioning in WebDav see http://www.ietf.org/html.charters/deltav-charter.html.

WebDav is an IETF proposed standard.  It's specified in RFC 2518 (http://www.ietf.org/rfc/rfc2518.txt).

See also:
	* ApacheWebDav

--ChanningWalton (addedto by LisaDusseault)

Apple uses WebDav to support its .mac system for synchronizing multiple devices across an internet connection and for collaborative applications like the internet supported iCal software.  --AndyPierce