I’m reading an excellent book on RESTful systems architecture: REST in Practice, by Jim Webber, Savas Parastatidis and Ian S Robinson. The book sets out to answer the question, “Can the same principles that drive the Web today be used to connect systems? Can we follow the same principles driving the human Web for computer-to-computer scenarios?” The authors build a strong case for doing exactly that and the book includes code samples in .NET and java.
At Pro Teck we use NServiceBus Pub/Sub for most (75%) of our SOA architecture and we have successfully used WCF’s implementation of REST for synchronous services.
My painful experience with SOAP and WS* drove me to become a proponent REST several years ago. For those interested in getting a quick and through intro to REST, I highly recommend Martin Fowler’s posting titled Richardson Maturity Model: steps toward the glory of REST.