PowerShell Lessons
10 fundamental concepts for PowerShell scripting
10 PowerShell commands every Windows admin should know
10 reasons why you should learn to use PowerShell
10 cool things you can do with Windows PowerShell
Quickly find space-hogging files with PowerShell
Three PowerShell queries to obtain critical system information
Two PowerShell scripts for retrieving user info from Active Directory
http://en.wikipedia.org/wiki/Windows_PowerShell
Windows PowerShell: Scripting Crash Course
Windows PowerShell: Make a Command into a Reusable Tool
Windows PowerShell: Writing Cmdlets in Script
Windows PowerShell 2.0 Brings Scripting to Active Directory — and Not Just for Windows Server 2008 R2
Stay Seated!
Filter Left, Format Right
Responding to WMI Events
Cool Pipeline Tricks, Redux
Back Up Your Event Logs with a Windows PowerShell Script
Build a Better Function
Windows PowerShell 2 For Dummies Cheat Sheet
powershellpro.com POWERSHELL TUTORIALS
Streamlining Functionality in IIS 7.0 with AppCmd.exe
Take Command of Server 2008 with Windows PowerShell – Part 1
Take Command of Server 2008 with Windows PowerShell – Part 2
Microsoft Virtual Academy: Getting Started with PowerShell 3.0 Jump Start Videos
Geek School for PowerShell