Microsft Downloads

http://blogs.msdn.com/b/mssmallbiz/archive/2014/07/07/largest-collection-of-free-microsoft-ebooks-ever-including-windows-8-1-windows-8-windows-7-office-2013-office-365-office-2010-sharepoint-2013-dynamics-crm-powershell-exchange-server-lync-2013-system-center-azure-cloud-sql.aspx

Managed Metadata 101: Taxonomy and Tagging in SharePoint - May 20, 2014 WAND Webinar

https://www.youtube.com/watch?v=U4jvtc0hsh0
https://www.youtube.com/watch?v=oJvIfMkBdE0
https://www.youtube.com/watch?v=_RnK3PMVmXg

Sharepoint Apps Overview

http://channel9.msdn.com/Series/Developing-SharePoint-2013-Core-Solutions/04