About: http://webisa.webdatacommons.org/42930607

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	As Jewey said, Byline is a great example of how this can be implemented with options for 3g on cacheing, and feed by feed settings. (also have a look at byline for how it downloads truncated feeds).
http://www.w3.org/ns/prov#wasQuotedFrom	getsatisfaction.com