The only book available providing a broad overview of all internet GIS technology and services, Understanding Internet GIS puts the exploding field of Internet mapping in context, providing insights and range not found in application-specific books. This second edition features new material covering digital earth, intelligent agents, user interface design, and Google, Yahoo, and MSN mapping services. This exhaustive reference includes over forty informative case studies (many new to this edition) that elucidate information and an introduction to basic network architecture and application development.