About: http://webisa.webdatacommons.org/115464627

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	Usenet and other mediums were largely ignored.Of course also it has the advantage you mentioned of being outside of Google.
http://www.w3.org/ns/prov#wasQuotedFrom	blogspot.com.au