WPP Doubling Twitter Ad Spend This Year To $100 Million

by Ginny Marvin

CANNES LIONS LIVE: The Cannes Debate: Twitter, Viacom and WPP

Sir Martin Sorrell, founder and CEO of WPP, in conversation with two of the global media industry's most influential leaders: Philippe Dauman, President and CEO of Viacom, and Twitter CEO Dick Costolo. Expect a wide-ranging and provocative discussion covering the biggest issues Twitter and Viacom see in the industry today, the future of their businesses and the increasingly symbiotic relationship between TV and social.

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