SQL Sentry's Aaron Bertrand (@AaronBertrand) takes a quick look at performance of encrypted backups in SQL Server 2014, and points out a couple of other things you'll want to know before implementing the feature.
Paul White (@SQL_Kiwi) dives deep into new execution plan information introduced in SQL Server 2012; specifically, thread reservation and usage information for parallel plans.
Glenn Berry (@GlennAlanBerry) of SQLskills.com talks about memory limits on certain versions and editions of SQL Server, and ways to determine the optimal amount of memory to put in your servers.