Real world example of moving 100% to the cloud
Examples of architectures designed to run on Amazon Web Services are a great way to illustrate the necessary design changes and patterns associated with a cloud deployment methodology.
Soocial.com, a "one address book solution to contact management" runs entirely on AWS and uses some interesting technologies to make their service work, including RabbitMQ, an open-source implementation of AMQP, the emerging standard for high-performance enterprise messaging. (I've written about AMQP and RabbitMQ here, and here in the past.)
One of the most interesting things is how the architecture isn't dramatically different than it would be if you were to build an on-premise version--except that Soocial is able to take advantage the Amazon Web Services EC2's scale, hot-standby, and backups. It's definitely worth learning more about if you are interested in the cloud.
Dave Rosenberg dishes up "Software, Interrupted" with nearly 15 years of technology and marketing experience that spans from Bell Labs to multiple start-up IPOs to open-source enterprise software companies. He is co-founder of MuleSource and currently serves as the general manager of Hardy Way. He is a member of the CNET Blog Network and is not an employee of CNET. Disclosure. You can contact Dave via e-mail at softwareinterrupted@gmail.com or follow him on Twitter @daveofdoom. 
