Laird OnDemand: Visual Map of the Cloud Computing/SaaS/PaaS Markets: September 2008 Update
http://peterlaird.blogspot.com/2008/09/visual-map-of-cloud-computingsaaspaas.html

Visual Map of the Cloud Computing/SaaS/PaaS Markets: September 2008 Update Four months ago, Kent Dickson and I created a visual map of the Cloud, SaaS and PaaS industry. It proved to be a popular item - we got a lot of comments and continue to see traffic to my blog page. I was long overdue to create a second version - comments needed to be integrated, and the industry has changed enough to warrant a round of updates. This blog entry contains an updated version of the map.