Thomas Powell is founder of PINT, Inc. and a lecturer in the Computer Science department at University of California San Diego. His articles have appeared in serveral magazines and sites, including Network World, Internet Week and ZDNet. He has also published numerous books on Web technology and design, including the best-selling Web Design: The Complete Reference. Visit pint.com. Joe Lima is the Director of Product Development for Port80 Software. He has worked for a variety of Internet, wireless and software development companies, specializing in research and development for server-centric technologies. Visit port80software.com.