About: http://webisa.webdatacommons.org/56550836

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	Likely the two most significant approaches are portals and search engines. [0013] A portal is a Web site providing a topical hierarchical organization of other information resources available via the Internet.
http://www.w3.org/ns/prov#wasQuotedFrom	google.co.uk