Social media maven jump-starting PR in hard-times Flint Keying on Facebook, he takes on all comers in burnishing image of GM’s birthplace. By Lindsey MillerMay 13, 2009 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.