The Semantic Web provides a common framework that allows data to be shared and reused across application, enterprise, and community boundaries. It is a collaborative effort led by W3C with participation from a large number of researchers and industrial partners. It is based on the Resource Description Framework (RDF).
The W3C Protocol for Web Description Resources (POWDER) Working Group has published two Protocol for Web Description Resources (POWDER) Working Drafts: Grouping of Resources and Description Resources. The first document describes how to publish descriptions of multiple resources such as all those available from a Web site. These descriptions are always attributed to a named individual, organization or entity that may or may not be the creator of the described resources. The second publication provides a means for individuals or organizations to create machine-readable descriptions.