The purpose of this article is to provide information about Cloud Computing. As a subject matter that is often mentioned, but not quite understood, the authors decided to cover areas that go over the history, evolution, adoption, threats, and opportunities that exist with Cloud Computing and businesses today. Cloud Computing is the latest hype in the technology world, and organizations are taking notice. It is changing the way industries and enterprises do their business, while allowing users with less capital to utilize the same services and create a competitive advantage. It is emerging as one of the major enablers for all organizations, big or small, and causing businesses to re-evaluate their business models and IT infrastructure strategies.