Sir Martin Sorrell confirmed to speak at ad:tech London | TheMarketingblog http://t.co/xgRFp4g9wS … pic.twitter.com/674tjj9X1S
— Will Corry (@slievemore) September 20, 2014
Sir Martin Sorrell confirmed to speak at ad:tech London | TheMarketingblog http://t.co/xgRFp4g9wS … pic.twitter.com/674tjj9X1S
— Will Corry (@slievemore) September 20, 2014