In a wide-ranging panel at Cannes, CEOs Dick Costolo (Twitter), Philippe Dauman (Viacom) and Martin Sorrell (WPP) discussed the evolution of rich media consumption on mobile devices and why marketer investment in mobile video does not yet match consumer demand. Sorrell, who opened the panel by stating WPP spends $750 million with Viacom (said Dauman:... Continue reading »
