URIs < Metadata in the Yahoo! Directory

RFC 2168 - Resolution of URIs Using the DNS
www.cis.ohio-state.edu/htbin/rfc/rfc2168.html
Uniform Resource Names (URNs): Handle System
A distributed computer system which stores names of digital items and which can quickly resolve those names into the information necessary to locate and access the items.
www.handle.net
Uniform Resource Names (URNs): RFC 2169 - Using HTTP in URN Resolution
www.cis.ohio-state.edu/htbin/rfc/rfc2169.html
Universal Resource Identifiers
Hypertext version of RFC 1630.
www.w3.org/Addressing/URL/URI_Overview.html
UR* and The Names and Addresses of WWW objects
www.w3.org/Addressing/Addressing.html

Metadata > URIs