Proven strategies for harnessing the power of social media to drive social change Many books teach the mechanics of using Facebook, Twitter, and YouTube to compete in business. But no book addresses how to harness the incredible power of social media to make a difference. The Dragonfly Effect shows you how to tap social media and consumer psychological insights to achieve a single, concrete goal. Named for the only insect that is able to move in any direction when its four wings are working in...