General
Steve Murawski’s reading list Steve Murawski has become recognized as one of the foremost DevOps experts in the Windows community. His reading list is simply awesome. I’m still making my way through it, but have already grown tremendously from the insight I’ve gained.
DevOps Bookmarks This is a community maintained list of DevOps tools. You can filter by type of tool, OS, language etc. If you’re trying to figure out what tools are out there, or where to get started, this is a great place to look. If you’ve got something to add, you can fork the repository and contribute.
DevOps Library DevOps library is a collection of high quality, free videos training to get you started with various DevOps tools and concepts. The videos are short, so you don’t need to commit a ton of time to get started. They often include Vagrant builds to go with the training so you can jump right in.
PowerShell
PowerShell.org has tons of PowerShell resources. They have blog posts, free ebooks, a podcast, YouTube videos, and much more.
Getting Started with PowerShell 3.0 This is an MVA (Microsoft Virtual Academy) course that can get you going from 0-60 with PowerShell in about 8 hours.
Hey Scripting Guy! Blog Microsoft Scripting Guy, Ed Wilson, has been publishing an article a day for a very, very, long time. There is a huge amount of content there, covering nearly anything you would want to know about PowerShell.
Git
Interactive Git Tutorial Learn Git from GitHub’s Octocat! In about 15 minutes, you’ll be exposed to all the basics.
Learn Git Branching This interactive tutorial starts with some basic branching, and goes into more advanced topics.
Git Cheat Sheet A helpful cheat sheet that saves you from having to memorize the most common Git commands.