The document discusses emerging cloud computing technologies including Infrastructure as a Service (IaaS), Platform as a Service (PaaS), and Database as a Service. It notes that IaaS is currently the fastest growing cloud service, with Gartner reporting 42.4% growth in 2012. Popular IaaS providers include Amazon Web Services, CloudStack, and OpenStack. PaaS offerings from Google App Engine, Heroku, and Amazon Elastic Beanstalk are analyzed in terms of their approaches and limitations. Best practices for adopting PaaS include considering application requirements, resources, data needs, and interactions beyond the platform.