PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • An associated Emerging Standards" page from Clay makes clearer his opinion that cloaking is a bad practice He also defines some examples of link spam that he believes are wrong, as well as general types of page element spamming, though he does not itemize specifics.
http://www.w3.org/ns/prov#wasQuotedFrom
  • searchenginewatch.com