About: http://webisa.webdatacommons.org/7918078

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	There is no means of signing in with Facebook, Twitter or other social networks ??? users must use their email address as their user ID.
http://www.w3.org/ns/prov#wasQuotedFrom	adweek.com