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.