This is a specification of a precise semantics, and corresponding complete systems of inference rules, for the Resource Description Framework (RDF) and RDF Schema (RDFS).
Explorator is a tool for exploring RDF data by direct manipulation. Explorator’s web interface allows users to explore a semi-structured RDF database to both gain knowledge and answer specific questions about a domain, through browsing, search, and exploration mechanisms.
A simple but powerful service that delivers RDF-based structured descriptions of Web addressable resources (documents or real world objects) in a variety of formats through Generic HTTP URIs.
Resource Description Framework (RDF) is a standard for describing resources on the web. This guide contains links to many RDF resources including examples, documents, software, tools and projects that use it.
C. Bizer, E. Pietriga, D. Karger, und R. Lee. Proc. of 5th International Semantic Web Conference, Athens, GA, USA, November 5-9, 2006, LNCS 4273, (2006)