Das neue Service Oriented Architecture Solution Center auf MSDN biete jede Menge Information über die Vision und Technogien die Microsoft in diesem Zusammenhang bieten kann.

Insbesondere kann ich das neue Whitepaper A Real-World Approach to SOA ( Whitepaper) empfehlen.

Zusätzlich ist online verfügbar:

Application Platform Infrastructure Optimization (APIO)
Service Orientation and Its Role in Your Connected Systems Strategy
A Business-Oriented Foundation for Service Orientation
Enabling People-Ready Processes through Business Process Management
Software as a Service (SaaS): An Enterprise Perspective
Building Better Business Applications using the 2007 Microsoft Office System
Patterns & Practices: Web Service Software Factory

Harry