Cloud computing isn't just potentially delivering savings and flexibility for existing organizations. It is also laying the groundwork for a new generation of business start-ups, a new survey finds. Companies are often challenged to increase the functionality of IT while minimizing capital expenditures. Cloud providers operated on proprietary closed architectures that make migration a headache. In this paper the authors present a Cost based approach for selecting multi-cloud storage. They found that their model fits the practical requirements and supports decision making in cloud computing.