Social Media The 10 most-followed thought leaders on LinkedIn President Obama and Gov. Mitt Romney are on the list—but neither of them are No. 1. Care to guess who is? By Michael SebastianNov. 5, 2012 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.