The latest version of the links below can be found here, or download a PDF version here. Don't ask me where they got that US-Army-looking-font in the PDF... it probably wouldn't have been my first choice 😉
Group Policy Documentation Essentials
These links help you get started with Group Policy.
Script and Download
Connect with Community and Learn on Demand
What’s New in Group Policy
Group Policy Preferences
Want to know what’s new in Group Policy? These links help you learn about the latest features and relevant tools for Group Policy in Windows Server 2008 and Windows Vista.
Starter Group Policy Objects (GPOs)
Administrative Templates for Windows Server 2008
Remote Server Administration Tools (RSAT) for Windows Vista Service Pack 1
Microsoft Advanced Group Policy Management (AGPM)
These links help you get started with AGPM.