I do not spend much time discussing e-Procurement on E-Sourcing Forum but do want to bring attention to a new blog dedicated to the subject. Coupa seems to have had a really good launch and Dave and Noah have plenty of experience and talent to discuss e-Procurement. Right now, the content is just ramping up and I am sure will get more and more interesting over time as their experiences and products develop and mature. You can read the Coupa blog here.