"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...

Research shows that optimism can positively impact health, but when and why people feel optimistic when confronting health challenges is less clear. Findings from six studies show that the frames people adopt when thinking about health challenges influence their optimism about overcoming those...