GeoBrain will mobilize NASA EOS data and information through Web service and knowledge management technologies for higher-education teaching and research. The technologies, based on geo-object and geo-tree concepts, will be implemented in a standards-compliant, open, distributed, three-tier web information system. The system will make petabytes of NASA EOS data and information, especially those in the ECS data pools, as easily accessible as their local resources, to higher-education users, both professors and students. The system will allow users to dynamically and collaboratively develop interoperable, web-executable geospatial service modules and models, and run them on-line against any part of the petabytes of archived data, to get back customized information products rather than raw data. This project will bring a data-enhanced geospatial learning and research environment to the desktops of students and professors that they have never previously experienced before. At the end of the project, we expect that at least 100 universities worldwide will routinely use GeoBrain in teaching and research, with more than 1,000 copies of the GeoBrain client installed. In addition, the project will contribute experience in developing both consensus-based standards and standards-compliant, interoperable, distributed web information systems to the Federation and to SEEDS's standards and interfaces processes, technology infusion, and architecture and software reuse study teams.