About: http://webisa.webdatacommons.org/136197784

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	Hepp says double opt-in is critical for lists that people might be tempted to enter friends' names into as a "spoof as well as any lists regarding highly sensitive or personal information such as health and financial matters.
http://www.w3.org/ns/prov#wasQuotedFrom	marketingsherpa.com