The Storage Team Blog about file services and storage features in Windows and Windows Server.
Recently, the Failover Clustering team released several White Papers about High Availability and Clustering in Windows Server 2008:
§ Microsoft High Availability Overview
§ Overview of Failover Clustering with Windows Server 2008
§ Quick Migration with Hyper-V
§ Windows Server 2008 Failover Clustering Architecture Overview
§ Failover Clustering in Windows Server 2008 Enterprise Datasheet
§ Windows Server 2008 Multi-Site Clustering - Technical Decision-Maker White Paper
§ Windows Server 2008 - Product Page: High Availability
For those seeking for that extra information, this is a great resource.