About: http://webisa.webdatacommons.org/268552283

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	July 15, 2010 8:35 pm Nice article.And yes saving file periodically is a must.
http://www.w3.org/ns/prov#wasQuotedFrom	smashingmagazine.com