Annotation GCC 2007 covers such broad issues in grid computing as semantics, interoperability, programming and composition, quality of service, performance, deployment, monitoring, security, dependability, survivability, and reliability. They are classified into the following categories: theory and fundamental algorithms of grid computing; novel grid architectures; resource discovery, organization and Management; resource virtualization and scheduling; programming models, usage models and grid workflow; semantic and non-functional support for grid computing; and engineering approaches for grid applications; as well as empirical study of real-world applications.Contents: Theory and Fundamental Algorithms of Grid Computing; Novel Grid Architectures; Resource Discovery, Organization and Management; Resource Virtualization and Scheduling; Programming Models, Usage Models and Grid Workflow; Semantic and Non-functional Support for Grid Computing; Engineering Approaches for Grid Applications; Empirical Study of Real-world Applications; The 2nd International Workshop on Workflow Management and Application in Grid Environments (WAGE07); The 2nd International Workshop on Grid Middleware (GridM07); The First International Workshop on Personalization in Grid and Service Computing (PGSC07)