Social Media in Libraries :Many libraries recognize the importance of using social media to engage their users, but not all of them use it, or use it well. What constitutes good social media use for a library? What, if anything should be in a social media policy? How do they determine what sites and what types of posts will interest the most people? I want an extended literature review..no introduction, no methodology, no analysis and conclusion It needed some more literature references, especially more academic references, to make it stronger at least 30 academic references And not old reference..the previous had a reference from 1967