You can use Active Directory Users and Computers to double-check that a computer was successfully added.

You can set Logon Time for Users in Active Directory for security purposes to regulate logon sessions. This will prevent you from signing in at any time.

Want to know how to set permissions in Active Directory for users? Using GPMC or AD for computers and users are the best methods.

If I want to administer them from a workstation, I can install the management tools and then use the active directory users and computers. This lets me view a domain but only one.

Adam walks through how to proactively monitor an AD group for changes and execute a PowerShell script to take action when that happens.