CIO CORNER

1. http://en.wikipedia.org/wiki/Platform_as_a_service

Introduction to PaaSfrom Wikipedia, it describes the definition of PaaS and its key characteristics, types, factors driving adoption and factors inhibiting adoption.

2. http://en.wikipedia.org/wiki/Software_as_a_Service

Introduction to SaaS from Wikipedia.

3. http://en.wikipedia.org/wiki/Infrastructure_as_a_service

Introduction to IaaS from Wikipedia.

4. http://www.saasblogs.com/2009/03/19/whats-better-piecing-a-saas-stack-together-or-using-a-paas

A discussion about the costs of PaaS, it compares the costs between two different implementations: running an EC2 instance to satisfy the server needs and getting a commodity managed server through ServerBeach.

5. http://gevaperry.typepad.com/main/2009/03/cloud-pricing-and-application-architecture.html

Another discussion about costs of cloud computing

6. http://www.slideshare.net/jgotangco/how-open-source-is-accelerating-innovation-in-the-field-of-saas-and-paas-presentation