Windows Server Update Services Frequently Asked Questions
http://www.microsoft.com/windowsserversystem/updateservices/evaluation/faqs.mspx

Download Windows Server Update Services
http://www.microsoft.com/windowsserversystem/updateservices/downloads/wsus.mspx

 

Windows Server Update Services / WSUS Part 1 video
http://blogcastrepository.com/WINSVR/Contrib/btucker/WSUS2pt1bst.wmv
 
Windows Server Update Services / WSUS Part 2 video
http://blogcastrepository.com/WINSVR/Contrib/btucker/WSUS2pt2bst.wmv