Paul Taaffe, who stepped down as CEO of Hill+Knowlton Strategies last January, has been tapped by Groupon as VP of global communications.
He takes over for Brad Williams, who now heads Weber Shandwick's North American tech operation. Williams left in ugust after a three-month stint.
Groupon raised $700M in November initial public offering, although the company was criticized at times for its PR in the run-up to the IPO.
Taaffe left H+K after its merger with Public Strategies. He was CEO from 2003 to early 2011.