A Shared Business Directory is a directory that is shared among the employees of a business. It is typically used to store the contact information of employees, clients, and other important individuals or companies that the business interacts with. This can be useful for quickly and easily accessing contact information and keeping it organized in a centralized location.

A personal directory, on the other hand, is a directory that is specific to an individual employee and is not shared with anyone else in the organization. It is typically used to store personal contacts and is not accessible by anyone else in the business.

In summary, a Shared Business Directory is a useful tool for businesses as it allows for easy access to contact information and helps to keep it organized and up-to-date. It is typically only modifiable by specific individuals within the organization and is different from a personal directory, which is specific to an individual employee and not shared with others in the business.