View Post Brands | Campaigns | Social Media Hill Holliday Could Put Your Tweet in a Dunkin’ Donuts Spot By Erik Oster on Nov. 7, 2013 - 5:15 PM Fans who tweet or post to Facebook about Dunkin’ Donuts may find themselves starring in Boston-based, IPG-owned Hill Holliday’s new campaign. Winners selected from the best posts made using the #mydunkin hashtag will, ...