Event-driven services in SOA - By Jeff Hanson. Design an event-driven and service-oriented platform with Mule. (January 31, 2005)
Grid's place in the service-oriented architecture - By Ian Foster. SOAs are transforming monolithic applications into services, thus allowing portability, reusability and on-demand access. (November 30, 2004)
SOA Much More Than Web Services - By Steve Wilkes. Provides alternative service invocation schemes and explains why there is much more to SOA than Web Services. (May 26, 2004)