The Semantic Web is a collaborative movement led by the World Wide Web Consortium (W3C) that promotes common formats for data on the World Wide Web. The Semantic Web provides a common framework that allows data to be shared and reused across application, enterprise, and community boundaries.
Semantic Web Overview
Resource Description Framework (RDF)
Motivation and Goals
RDF Vocabulary URI and Namespace (Normative)
Abstract Syntax (Normative)