IBM developerWorks: Mastering Grails: RESTful Grails: Build a resource-oriented architecture
Aaron Swartz: The Semantic Web In Breadth
Mock Objects: “Growing Object-Oriented Software, Guided by Tests”: Chapter 1. What’s the point of Test Driven Development?
Code To Joy: A fascinating quote attributed to James Gosling: “James Gosling once said that every configuration file becomes a programming language, so you might as well think that way.”
Wiki.Directi.Com: Building a Scalable Architecture for Web Apps – Part I
Previously: InfoQ: How to Design a Good API & Why it Matters