overview of group policies

http://www.windowsecurity.com/articles/Group-Policy-Management-Console.html
http://technet.microsoft.com/en-us/library/bb767569.aspx
http://technet2.microsoft.com/WindowsVista/en/library/e73f25da-42fc-4ca5-a969-6e8bc7e64d761033.mspx?mfr=true
http://technet.microsoft.com/hi-in/library/Bb726972.aspx
http://www.petri.co.il/working_with_group_policy.htm
http://articles.techrepublic.com.com/5100-6345-1060569.html
http://articles.techrepublic.com.com/5100-6345_11-6026123.html