Moving to the cloud can be confusing and costly if not planned adequately. There are many options you have to deal with, such as but not limited to Public Cloud, Private Cloud, Hybrid Cloud, Software as a Service (SaaS), Infrastructure as a Service (IaaS), Platform as a Service (PaaS), Cloud Storage, Cloud Hosting, Colocation, Cloud Backup, Shared or dedicated Resources.
Furthermore, you have to choose the right cloud services provider for your specific situation: Microsoft Azure, Microsoft Office 365, Amazon Web Services, Google Docs or other?