View Post Agencies WPP Will Double Its Spending Budget on Twitter in 2014 By Shawn Paul Wood on Jun. 23, 2014 - 11:26 AM In another headline from Cannes-Lions, WPP Grand Poobah Sir Martin Sorrell told the world that he will double ad spending on “The Twitter” (as he may have called it) from $50 million to $100 million. The news was anno ...