About: http://webisa.webdatacommons.org/226676603

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	Sites such as Google, Amazon, and salesforce.com provide the most serious challenge to the traditional understanding of free and open source software.
http://www.w3.org/ns/prov#wasQuotedFrom	oreilly.com