For those of you wanting to get a head start on Windows Server 2008 this is a nice 13 chapter freebie which at first glance appears to be quite comprehensive.
You have to register for this which takes a few minutes using your windows live id.
The final RTM versions of Windows Server 2008 were released onto MSDN Subscriber downloads last week so this e-book is very welcome right now.
I really need to learn PowerShell and had been looking around on Amazon for decent books. Only the first three chapters seem to be available for this e-book but they seem to cover off all the basics nicely.
Both e-books worth downloading.