Active Directory - Documentation

Here is the link for the 2003 Active Directory Documentation:
http://technet2.microsoft.com/windowsserver/en/technologies/featured/ad/default.mspx

If you still need it...Here is the Windows 2000 Active Directory Documentation Link:
http://www.microsoft.com/technet/prodtechnol/windows2000serv/technologies/activedirectory/default.mspx