CloudViews: Communal Data Sharing in Public Clouds

Web services are undergoing an exciting transition from in-house data centers to public clouds. Attracted by automatic scalability and extremely low compute, storage, and management costs, Web services are increasingly opting for public cloud deployment over traditional in-house datacenters. For example, Amazon's S3 provides storage and backup services for numerous applications, a number of mature services have recently migrated to Amazon EC2, and many startups are adopting the cloud as their sole viable solution to achieve scale. While predictions regarding cloud computing vary, most of the community agrees that public clouds will continue to grow in the number and importance of their tenants.