Carsten and I just returned from a Web Developer Meeting of the .NET Developers Association. For us, building forty is just a block away, so we decided to sit in on Michael Stiefel's talk on SOA. You can download the presentation and source code here.

Michael (who still remembered me from a book publishing summit waaay back) recommended that we (as in all attendees) check out the Metropolis Webcasts: Pat Helland relates the evolution of technology architectures to the evolution of city planning and shows us how far we have yet to go.

• Metropolis : Envisioning the Service-Oriented Enterprise (Part 1) In this part, Pat introduces the Metropolis analogy.
• Metropolis : Envisioning the Service-Oriented Enterprise (Part 2) In this part, Pat introduces the concept of services.
• Metropolis : Envisioning the Service-Oriented Enterprise (Part 3) In this part, Pat describes the guidance provided by the Metropolis analogy

The Microsoft Architect Journal also has an article on Metropolis.