Social Media What is Pinterest? And should your brand climb aboard? The social media site is a sort of reverse Twitter; most messaging is done with images, and text is secondary. It could be a great communication tool, some say. By Matt WilsonDec. 21, 2011 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.