The 153 papers gathered in volume one of this two-part set from the April 2006 conference present new developments in the theory, design, and application of computer networks and distributed computing systems. The 40 sessions arrange the material according to such areas as multimedia communication, routing algorithms, intrusion detection, peer-to-peer systems, wireless networks, middleware architectures, scheduling, web-based systems, and network analysis. The second volume collects 158 papers presented during ten workshops on security, pervasive computing, mobile information systems, heterogeneous wireless sensor networks, service-oriented architectures in converging network environments, high-performance computing in medicine, and network-based virtual reality. No subject index is provided. Annotation ©2006 Book News, Inc., Portland, OR (booknews.com)