AlwaysOn Availability Groups learning resources
Overview of AlwaysOn Availability Groups (SQL Server)
https://msdn.microsoft.com/en-us/library/ff877884.aspx
Prerequisites, Restrictions, and Recommendations for AlwaysOn Availability Groups (SQL Server)
https://msdn.microsoft.com/en-us/library/ff878487.aspx
SQL AlwaysOn Team Blog
https://blogs.msdn.com/b/sqlalwayson/
SQL Server Customer Advisory Team
https://blogs.msdn.com/b/sqlcat/
MSDN Blogs > Brad Chen's SQL Server Blog > All Tags > alwayson
https://blogs.msdn.com/b/bradchen/archive/tags/alwayson/
AlwaysOn Architecture Guide: Building a High Availability and Disaster Recovery Solution by Using Failover Cluster Instances and Availability Groups
https://msdn.microsoft.com/en-us/library/jj215886.aspx
[Building a High Availability and Disaster Recovery Solution using AlwaysOn Availability Groups.docx]
SQL Server 2012 AlwaysOn: Multisite Failover Cluster Instance
https://msdn.microsoft.com/en-us/library/hh750283.aspx
[SQLServer2012_MultisiteFailoverCluster.docx]
SQL Server High Availability and Disaster Recovery for SAP Deployment at QR: A Technical Case Study
https://download.microsoft.com/download/d/9/4/d948f981-926e-40fa-a026-5bfcf076d9b9/SQLServer_HADR_QR.docx