Microsoft Office Live Small Business is Microsoft's business-in-a-box service. It's designed to get a small business on the Web--both publicly, with a Web site, and privately, for collaboration and back-office work. Businesses get their own domain, e-mail, shared workspaces, Web site, and a contact manager tool.
Microsoft Office Live Small Business service is free, but users can tack on more services for additional monthly, and yearly fees. These include more storage, more users, premium ad-free e-mail, and domain name registration.