Community Sites which contain a lot of screens casts and interview content

TechNet Edge - A collection of Windows HPC topical demonstrations for the IT Professionals.

Channel9 - A collection of Windows HPC topical demonstrations for the Developer.

http://www.microsoft.com/hpc - The Microsoft product portal.   See the on-demand webcasts via the events tab.

http://technet.microsoft.com/en-us/hpc - Windows HPC TechCenter.

http://code.msdn.microsoft.com/hpc - A listing of resources for developers.

A great list of bloggers on this subject from within Microsoft

http://blogs.technet.com/gmarchetti

http://blogs.msdn.com/volkerw

http://blogs.msdn.com/hpctrekker

http://blogs.msdn.com/philpenn

http://code.msdn.microsoft.com/hpc

Whitepapers

Microsoft Windows HPC Server 2008 Overview Data Sheet
Here's a quick overview of Windows HPC Server 2008 benefits and features.
Windows HPC Server 2008 Job Templates

Learn how Job templates can help streamline the job submission process.
Windows HPC Server 2008: Using MS-MPI

Find out more about the new high performance Message Passing Interface (MPI) stack included in Microsoft HPC Pack 2008.
Overview of SOA Programming Model and Runtime System for Windows HPC Server 2008

This white paper provides a technical overview of SOA applications and the Windows HPC Server 2008 functions that support the SOA model.

Windows HPC Server 2008 Technical Overview
Get a detailed overview of Windows HPC Server 2008 new features and benefits.

Windows HPC Server 2008 Job Scheduler
Learn how the Windows HPC Server 2008 new Job Scheduler provides greater scalability and supports advanced policies. It also includes a new service-oriented architecture (SOA) mode that allows interactive applications.

Windows HPC Server 2008 System Management Overview
Learn more about the Windows HPC Server 2008 centralized management and deployment interface with template-based deployment capabilities, and a Network Configuration Wizard that helps to simplify network and topology setup and configuration.