Social Media First few days determine whether a video goes viral: study Video analytics company Unruly found that about a quarter of the shares a video gets occur within the first three days of its existence. By Matt WilsonApril 25, 2013 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.