As Web services continues to mature and the manufacturing industry, from plant floor to enterprise thru extended value chains, begins to embrace service oriented architectures based on interoperable Web services, content and guidance on those key areas will be invaluable. Check out http://msdn.microsoft.com/webservices/default.aspx?pull=/library/en-us/dnwebsrv/html/introwsa.asp for a great introduction to the world of Web services, the concepts and the specifications that make of the current "stack".