Stefanos Kaxiras is a researcher at Bell Laboratories, Lucent Technologies. He received his PhD in computer science from the University of Wisconsin-Madison. His dissertation topic was on optimization of sharing patterns for scalable shared-memory systems. He has also worked on architectures in the context of processor-memory integration. He received an MS from the University of Wisconsin-Madison in computer science and a BS in electrical and computer engineering from the National Technical University of Athens, Greece. Stefanos is editor of the IEEE 1596.2 proposed standard, a member of the IEEE Computer Society, and a student member of ACM. Doug Burger is an assistant professor at the University of Texas at Austin. His research interests are in computer architecture, specifically in technology-driven microprocessor design and in embedded systems. He received his PhD from the University of Wisconsin-Madison, with a dissertation on reducing memory traffic for advanced microprocessors. He also received an MS from the University of Wisconsin-Madison and a BS from Yale University, both in computer science. He is a member of the IEEE, the Computer Society, and the ACM. James R. Goodman is professor and chair of computer sciences at the University of Wisconsin-Madison. His current research focuses on high-performance memory systems and computer systems of the future. Goodman received a PhD from the University of California at Berkeley. An early contributor to multiprocessor snooping cache literature, Goodman has actively participated in the development of IEEE Std 896 (Futurebus) and 1596 (Scalable Coherent Interface). He has published papers in the areas of cache-coherence algorithms, shared-memory multiprocessor architectures, database systems, interconnection networks, virtual memory, memory-register organization, and memory systems design.