About: http://webisa.webdatacommons.org/9783797

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	PosterousNot an email service provider per se, Posterous is a hugely popular microblogging site that has recently added features which allow users to transfer their blog content into email newsletters.
http://www.w3.org/ns/prov#wasQuotedFrom	websitemagazine.com