About: http://webisa.webdatacommons.org/3256144

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	But I think in the recent time Facbook, Twitter, Stumbleupon and Digg are the best sites to be used as social networking sites.
http://www.w3.org/ns/prov#wasQuotedFrom	daniweb.com