Learn about Windows PowerShell
Free registration for the free 2010 Scripting Games is now open! Did we mention it's free?
Go to http://2010sg.poshcode.org, log in with either your Windows Live ID or OpenID, complete your profile, and then wait with increasing anticipation for the Games to begin on April 26, 2010.
See also Ed's longer post about the opening of registration that he posted on the Microsoft Press Blog.
Ed Wilson and Craig Liebendorfer, Scripting Guys