Martin Sorrell celebrity gossips, celebrity news, celebrity photos Sponsored Links News related to Martin Sorrell The most powerful person in advertising is gonejust as it faces an existential crisis Photos and posts related to Martin SorrellAmazon Is Threatening Google's Ad Space Monopoly, WPP CEO MartinSir Martin Sorrell Says The Advertising Industry Is 'Too CompetitiveSir Martin Sorrell D&AD Member Profile D&ADSir Martin Sorrell: Advertising Man Who Made The Industry's BiggestWPP Boss Sir Martin Sorrell Under Investigation Over Personal