About: http://webisa.webdatacommons.org/372148846

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	I actually knew about all the ones you mentioned, but except for 394 and the Tumblr sites, none seem to be that active.
http://www.w3.org/ns/prov#wasQuotedFrom	headlinegrabber.org