Cloud Computing is one of the top ten strategic technologies predicted to revolutionize the future of computing.  Moving to the Cloud provides application developers and technical architects with an in-depth introduction to cloud computing models, applications development paradigms, and technologies. The authors examine the cloud platforms and technologies in use today, not only describing how to program the APIs, but also comparing the concepts and technologies that underlie them. They examine methods for developing both client-side and cloud-side applications covering data parallelism, virtual infrastructures, thin web apps, rich client apps, and mashups. Key challenges such as scaling, security, and managing the cloud infrastructure are also addressed. The book concludes by discussing technologies related to Cloud Computing, along with key open issues, and emerging Cloud technology standards that will drive the continuing evolution of cloud computing. Includes complex case studies of Cloud applications actually implemented by Cloud experts from Yahoo! Amazon, IBM, and HP Labs. Presents insights and techniques for creating compelling rich client applications that interact with Cloud services. Demonstrates and distinguishes features of different Cloud platforms using simple to complex API programming examples.