About: http://webisa.webdatacommons.org/32244195

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Search Marketing are the largest networks, but Microsoft adCenter (live.com) and other sites also sell paid placement listings directly as well.
http://www.w3.org/ns/prov#wasQuotedFrom	directom.com