Annotation SC2003 explores innovative and important new work in high-performance computing and networking. Its papers span theory and practice, modeling and experimentation, and infrastructure and application. Modeling and visualizing earthquakes, services for grids and clusters, and optimization of computer and network architectures are just a few of the topics reported on this CD-ROM. The CD-ROM offers the entire contents of the conference but as a digital and multimedia product, it offers elements that traditional proceedings could not including animations, color graphics, and hypertext links.