Boost Your Analytics with Machine Learning for SQL Nerds slide deck and other pointers for DBAs on performance (setup + improvement)
Installing Packages in SQL Server R Services is super easy. This blog post covers some basics on what to do especially when you're just starting out.
Step-by-step guides with code samples on how to perform database backup to Azure Blob Storage with T-SQL in SQL Server 2012 SP1 CU2 / SQL Server 2014 and SQL Server 2016 using Credentials.
A quick summary and the ultimate reference to Stretch Database in SQL Server 2016 CTP 2