About: http://webisa.webdatacommons.org/142835430

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	Although the traditional online ad market is far larger - estimated at about $23 billion this year - Google and rivals such as Yahoo Inc. and Microsoft Corp. have all been jockeying to get an early start in mobile marketing.
http://www.w3.org/ns/prov#wasQuotedFrom	phys.org