Cloud computing is changing the way we provision hardware and software for on-demand capacity fulfillment. Lately I have been thinking about the ways on-demand servers, storage, and CDNs are changing the way we develop web applications and make business decisions. Gone are the days of idle CPUs, empty memory, or unused drive space. The cloud charges us for what we use as we use it (assuming capacity is available). In this post I will provide an overview of the cloud hosting landscape with a particular focus on cloud utilization by web companies. I will walk through a managed infrastructure stack and examine a few major business targets.
http://www.niallkennedy.com/blog/2009/03/cloud-computing-stack.html
