Powershell - videos and utilities
The Channel9 guys have posted an interesting video where the Powershell team discuss the goals of Powershell, where it is going in the future, and showing off the environment in action - check it out at https://channel9.msdn.com/Showpost.aspx?postid=309510
Also - an interesting site with Powershell add-ons & tools is at https://www.powerlocker.com/, providing features like script encryption and editing enhancements.