Conclusion: Community Clouds can provide the expected value of using “Cloud”-based services in a shared environment that may be more economical than a closed private Cloud or privately owned and managed IT solutions. But economics may not be the driving factor. Identifying a common “customer” need or client base can be the main driver to getting similar organisations to agree to use shared resources or services.
The effort in getting organisations to recognise the opportunity to work together and to actually implement a community Cloud should not be underestimated. As in arranging car pooling, whilst the benefits may be clear, there is still the challenge of finding the other participants who all want to go to the same place, at the same time, and with agreed cost sharing. A “lead” organisation is necessary to help coordinate the required effort to create a Community Cloud.