[21:45] Entrepreneur, business expert, and international author Sam Silverstein’s battle cry of “No More Excuses” has been heard by companies and business professionals the world over. Accountability is today’s competitive advantage to reclaim market share and win the heart of a hyper-discerning consumer. Sam served as the 2008-2009 President of The National Speakers Association and is a Certified Speaking Professional. Join us as Sam talks about his used of Twitter!