SharePoint On Premise Vs online
https://4sysops.com/archives/sharepoint-2013-on-premises-vs-sharepoint-online/ http://searchcontentmanagement.techtarget.com/podcast/SharePoint-Online-vs-on-premises-When-does-it-make-sense http://redmondmag.com/articles/2013/04/01/key-piece.aspx