Social Media Study: Video posts have the greatest Facebook reach A recent study highlighted the success of video and promotional posts on the social media platform, while demonstrating the decline of still photos. By Beki Winchel@bekiwekiFeb. 18, 2015 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.