John Willis, one of the leading bloggers and podcasters on cloud computing is joined by James and Geva. They discuss some of the basic cloud computing elements, including, what is a cloud? Platform-as-a-Service, Infrastructure-as-a-Service and Software-as-a-Service, Hybrid Clouds and Cloud Bursting. They also talk about whether or not the analogy between electric utilities and cloud computing is a valid one and where the two may differ.