1. Google App Engine.
http://appengine.google.com
2. Amazon Elastic Compute Cloud.
http://aws.amazon.com/ec2/
3. Barham, P., Dragovic, B.K., Fraser, B., et al.: Xen and the art of virtualization. In: 19th ACM Symposium on Operating Systems Principles, pp. 164–177. ACM Press, New York, USA (2003)
4. Habib, I.: Virtualization with KVM. Linux J. 2008, 8 (2008)
5. Wood, T., Shenoy, P., Venkataramani, A., et al.: Black-box and gray-box strategies for virtual machine migration. In: 4th USENIX Conference on Networked Systems Design & Implementation, pp. 229–242. USENIX Association, Cambridge, MA, USA (2007)