Microsoft Press. Windows 2000 Active Directory Services . Redmond, WA: Microsoft Corporation, 2000 (ISBN 0735609993). A chapter in this book provides some general information about security groups.
The Microsoft Windows 2000 Server Resource Kit contains in-depth information about designing an Active Directory domain.
Try searching the TechNet CD, or use Microsoft's online version at www.microsoft.com. Search for keywords such as "domains", "forest root", and "security groups".
Microsoft Press. 
Try searching the TechNet CD, or use Microsoft's online version at www.microsoft.com. Search for keywords such as "domains", "forest root", and "security groups". 