There are many different types of cloud services today, many of them are for free and may require additional payment if more features are added. If you are running a small business, you should be able to primarily determine that needs of your business as well as the amount of money you are willing to pay for the services.
You may opt for a public cloud that is run by a third party cloud service provider that manages maintenance and security of the shared system. However, each user gets their unique cloud where it can be customized based on their needs and budget. Another option is the private cloud. This cloud technology is built inside the computer systems of the business. It requires IT staff to manage the operations, which can be very costly.
A combination of both cloud services is called the hybrid cloud. This is the choice of large organizations that requires a large amount of data to be stored internally and externally.