More Taxonomy on Cloud - Forrester

Forrester believes, Looking through the current industry hype around the cloud computing that it is sustainable, long-term IT paradigm. Underpinned by both technology and economic disruptions, the cloud will fundamentally change the way technology providers engage with customers.

However, many customers are suffering from "cloud confusion" as vendors' marketing stretches cloud across a wide variety of capabilities.

To help, they have recently developed a new taxonomy of the cloud computing markets (see graphic) to give vendors and customers clear definitions and labels for cloud capabilities. With this segmentation in hand, cloud vendors and users can better discuss the challenges and benefits of cloud computing today and in the future.

I think the Public Cloud part is very clear to many but the variants of  Private cloud and VPC are causing lot of confusion.

I also think a detailed drill down on Private cloud is required as well...

-Cheers