The cloud landscape described, categorized, and compared
www.theenterprisearchitect.eu
MARCH 26, 2014
Other examples are what Heroku calls a  Dyno ,  CloudFoundry Warden , and the most recent one by Google:  lmctfy  (it seems that creating and open sourcing your own application container is the new hip). You could see this as an application server as a service. the messaging / NATS component of  CloudFoundry ).
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