After having mentioned the great two-day web services/SOA track we’ve got planned for the XML Summer School, I’m delighted to report that Jeff Barr of Amazon is now on board as our guest lecturer, providing a case study. He ponders: “I’m not sure, but I think this means that I can tell my (future) grandchildren that I was once a guest lecturer at Oxford University.” Hey, when I began my involvement with this event, it took all of 15 seconds for my mom to start telling her friends that I “teach at Oxford”. It’s true in some sense!