XML Linking Language (XLink) allows elements to be inserted into XML documents in order to create and describe links between resources. It uses XML syntax to create structures that can describe the simple unidirectional hyperlinks of HTML, as well as more sophisticated links.
Also see XML Namespaces, XML
Base, and XML Pointer Language
(Xpointer).
Organization: W3C
More information: XLink
page on the W3C Web site (new window)