Getting value from stuff you don't own is a compelling idea. Just think, someone else has created something that has value, and has given it or loaned it to you so you can leverage that value in ways that makes all parties richer. That's the promise of web services. Web services is all about exposing your services to your customers, whether they are external business partners or internal departments. Web services forces you to think of your information assets in a service-oriented view. Don?