About: http://webisa.webdatacommons.org/79534107

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	Assuming you are testing your PPC ads on a regular basis, which I hope is the case, one of the challenges you may face is deciding which success metric to choose ??? or, in simpler terms, what to optimize for.
http://www.w3.org/ns/prov#wasQuotedFrom	searchenginewatch.com