A and annotated collection of links to RDF documents and software, updated frequently.

Repository of RDF hierarchies.

Find out how to create and use RSS files and learn what they can do for you. See why companies like Netscape, Userland, and Moreover use RSS to distribute and syndicate article summaries and headlines. This article includes sample code that demonstrates elements of an RSS file, plus a Perl example using the module XML::RSS.

Proof Markup Language is used to build OWL documents representing both proofs and proof provenance information.

The main discussion forum for RDF developers and users.

Provides a forum for technical discussion concerning the design of logic-based languages for use on the Web.

Links to various documentation of RDF sources.

Resources database containing links to guides, papers, tools, and standards in addition to the archives of the (now closed) RDF-DEV mailing list.

Official pages from the World Wide Web Consortium, includes the specification, resources and news, and a links collection.

Repository for RDF schemas expressed in the RDFS, OWL, and DAML+OIL schema languages.