Hao He has a nice article on xml.com : Implementing REST Web Services: Best Practice and Guidance. I especially like the pipe-and-filter design which is at the heart of how we do things in Propylon. Data flows and data transformations are just full of natural goodness.
I was not aware that the pipeline technique has a heritage back with Richard Feynman and his work on that atom bomb. A fascinating particle of information! Anybody out there got any pointers? I tend to point to Henry Ford, to Adam Smiths 'Inquiry into the wealth of nations' and Herbert Simon's 'The architecture of complexity'.