Description:AUSTIN -- Data is the watchword in the digital marketing business these days, and the key to success is knowing when and how to employ data in ad campaigns, says Ken Barbieri, VP Business Development Ad Advisor at Neustar, a real-time information provider, during an interview with Beet.TV. We spoke with him at SXSW where he was a panelist at a private session about digital video organized and hosted by Videology.(3:46)