On June 4, 2013, at Street Fight Summit West, Factual CEO and Founder Gil Elbaz joined Rex Briggs for a fireside chat discussing local data in the context of mobile marketing. Rex is a renowned expert in marketing ROI and, as CEO of Marketing Evolution, works with large advertisers and agencies to help them measure and understand the efficacy of their marketing campaigns. During their discussion, Gil and Rex touched on topics such as how location data can help advertisers craft contextually relevant messaging, the role of location data in creating personalized app experiences, and how data can help measure the performance of mobile ads.