We’ve recently published a new whitepaper that describes the core concepts of identity in SharePoint 2010 and Kerberos’ role in authentication and delegation.  The whitepaper is divided into nine (9) core scenarios:

Scenario 1: Core Configuration
Scenario 2: Kerberos Authentication for SQL OLTP
Scenario 3: Identity Delegation for SQL Analysis Services
Scenario 4: Identity Delegation for SQL Reporting Services
Scenario 5: Identity Delegation for Excel Services
Scenario 6: Identity Delegation for Power Pivot for SharePoint
Scenario 7: Identity Delegation for Visio Services
Scenario 8: Identity Delegation for Performance Point Services
Scenario 9: Identity Delegation for Business Connectivity Services

Download the whitepaper.

Additional Resources

Administrative and Service Accounts Required for Initial Deployment

Plan Authentication Methods (SharePoint Server 2010)

Plan the Secure Store Service (SharePoint Server 2010)

Configure Kerberos Authentication (SharePoint Server 2010)