The first panel at ATS London was the standout discussion of the day. The debate around "how data and technology affecting change in advertising" was ably moderated by Erich Wasserman, Co founder & GM, EMEA, MediaMath, with discussion between Curt Hecht, Chief Global Revenue Officer, Weather Channel; Anthony Rhind, Co-CEO, Havas Digital and Sean Cornwall, former MD, eHarmony. Here Anthony Rhind discusses the critical role of data in the online advertising space. We will release the publisher perspective form Curt Hecht next week.