About: http://webisa.webdatacommons.org/161920673

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 Sacerdoti explains in a recent article, the two largest sellers of online advertising are Google and Facebook; these two companies make significant revenues from ad publishers, that is, from people who hit on hyper-links.
http://www.w3.org/ns/prov#wasQuotedFrom	huffingtonpost.ca