This white paper addresses how to replace the social features in SharePoint Server 2013 with equivalent Yammer features in a SharePoint Server 2013 on-premises deployment.
The new Yammer app for SharePoint enables you to embed your Yammer feeds into SharePoint Server 2013 sites, making them more social and engaging.
- WHITEPAPER: Integrate Yammer with on-premises SharePoint 2013 environments
http://www.microsoft.com/en-us/download/details.aspx?id=39357
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