The Business Control Panel is simply another name for the "Manage My Services" page. The page serves as the hub or entry point through which you access all of your services. When you sign in to your account at http://smallbusiness.att.yahoo.com/services or click the "Manage My Services" button, this will be the first page that you see.

Figure 1: The "Manage My Services" page, also known as the Business Control Panel.
From this page you can: