Server Core is a minimal more secure version of Windows Server 2008 more info here
http://technet.microsoft.com/en-us/library/dd184075.aspx
Server Core Installation Option Getting Started Guide
http://technet.microsoft.com/en-us/library/cc753802(v=ws.10).aspx
Server Core Application Analyser is a downloadab le tool to help determine if your application can run on server core technology
http://www.microsoft.com/downloads/en/details.aspx?FamilyID=e0396bd8-a49b-41e5-a992-fb33e7883444&displaylang=en#Overview
Neat site about just the core
http://servercore.net/index.php/category/server-core/
Core Features
http://servercore.net/index.php/2010/09/server-core-roles-and-features-in-2008-r2/
