The document discusses how CornerStone leveraged cloud services to grow its business over time. It began using hosted services in 2002 and gradually transitioned more of its operations to the cloud through acquisitions from 2009-2011. The document then defines cloud computing and outlines the three main categories of cloud services: Software as a Service (SaaS), Platform as a Service (PaaS), and Infrastructure as a Service (IaaS). Finally, it provides examples of how various organizations have benefited from cloud computing through reduced costs, increased flexibility, improved availability, security and scalability.