Disseminate private internal company information to your staff around the world. Answer frequently asked questions to save time and money in customer service. Stay in contact with suppliers and sales people. Make business easier to transact. Save printing costs.
Information is easily updatable and changeable on the Web.
Test market ideas. So people who are state of the art know you're state of the art. To be among the first, to lead not follow. Save money in advertising and marketing. Find qualified employees.