Windows
Desktops/Windows/End User Computing
Compare Windows 8.1 editions
Windows Tips and Tricks
Windows 8 Tricks
Make a bootable USB drive from Windows CD
Activate an MSDN copy of Windows 8 Ent.
Servers/Cloud/MGMT
Overview of components in Microsoft System Center 2012
Microsoft System Center 2012 Licensing Overview
SC Service Manager Overview + Video
SC Service Manager Blog
Education/Information/Training
MSFT Channel 9 Developer Training