I have started to collect a list of links for information about Windows 2008. If you are thinking about deploying Windows 2008 on your network these may be helpful to you.
-Windows 2008 Server Product information page: http://go.microsoft.com/fwlink/?LinkId=90853 This includes links to get access to the latest Beta of Windows 2008
-A document describing changes between Windows Server 2008, and Windows 2003 SP1
http://go.microsoft.com/fwlink/?LinkID=90854
-Windows 2008 Server step by step guides:
http://go.microsoft.com/fwlink/?LinkID=90856
-Windows 2008 Server forums at Microsoft:
http://go.microsoft.com/fwlink/?LinkId=90920
-Windows 2008 Server troubleshooting:
http://go.microsoft.com/fwlink/?LinkId=90857
This is just a start. If you know of any other good links for Windows 2008 Server, please drop me an email and I will update this list.