Marketing Study: ‘Expert’ content still the most influential Articles and reviews written by third parties have considerably more sway with customers than do user reviews or branded content—but that doesn’t mean those latter offerings are useless. By Matt WilsonMarch 26, 2014 SHARE Ragan Insider Premium Content 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.