Clusters, grids, and peer-to-peer (P2P) networks have emerged as popular paradigms for next generation parallel and distributed computing. They enable aggregation of distributed resources for solving large-scale problems in science, engineering, and commerce. In grid and P2P computing environments, the resources are usually geographically distributed in multiple administrative domains, managed ...

Clusters, Grids, and Peer-to-Peer (P2P) networks have emerged as popular paradigms for next generation parallel and distributed computing. They enable aggregation of distributed resources for solving large-scale problems in science, engineering, and commerce. In Grid and P2P computing environments, the resources are usually geographically distributed in multiple administrative domains, managed ...

The success of recent Web 2.0 platforms shows that people share information and resources within their social community and beyond. The use of these platforms in an e-learning context has been limited, though. One reason for this is the fact that most of these platforms only support specific media types, and teachers trying to assemble learning resources have to login to and use several Web 2.0...