The document discusses enterprise social networking tools Yammer and SharePoint. It provides an overview of Yammer, how Microsoft acquired it, and a case study on integrating Yammer and SharePoint. Social networking usage has surpassed email and portals. Enterprise social tools can improve knowledge sharing, expertise location, and engagement if implemented with the right strategy and adoption program. The document compares features of Yammer and SharePoint 2013 and discusses the future of these tools.