Protocol for Web Description Resources

The Protocol for Web Description Resources (POWDER) is the W3C recommended method for describing Web resources. It specifies a protocol for publishing metadata about Web resources using RDF, OWL, and HTTP.

The initial working party was formed in February 2007^[1] with the W3C Content Label Incubator Group's 2006 work as an input.^[2] On 1 September 2009 POWDER became a W3C recommendation^[3] and the Working Group is now closed.^[4]

POWDER supersedes the previous W3C specification PICS.^[5]