Harness the power of social networks This year marked the summer of social networking—learn why people are flocking to these sites and how you can harness their power By Michael SebastianNov. 4, 2007 SHARE To read the full story, log in. Become a Ragan Insider member to read this article and all other archived content. Sign up today Already a member? Log in here. Learn more about Ragan Insider.