BOSTON (PRWEB) September 20, 2018 SIM Boston is excited to announce Boston native, Mel Robbins, as the closing keynote speaker at the SIM Boston Technology Leadership Summit taking place on Tuesday, October 23, 2018 at Gillette Stadium. Mel Robbins is a serial entrepreneur, best-selling author, internationally recognized social media influencer, and one of the most sought-after motivational speakers in the world. Her digital platform inspires more than 20 million people a mon