Via BI/BPM – The SeeQueL, I have recently learned of a great new site I would like to share with you: MSBIAcademy. MSBIAcademy is a site created by Rob Kerr, SQL Server MVP and CTO at BlueGranite. The site currently offers lessons on: Excel, Integration Services, Data Warehouse Design, SQL Server, Mobile, SharePoint, Analysis Services (both Tabular and Multidimensional) and PowerView! Quite the impressive list. Most lessons are on the latest version of SQL Server, but guide lines given in them are true for earlier versions as well.
I highly recommend you check out MSBIAcademy as in short lessons of about 5 minutes and without registration – you get a good concept of what to do and how things work for every subject. A very impressive initiative!