You can purchase one of the various ready-made software applications that set up your online business. The problem there is the lack of ability to customize the application.

You can also have a Web programmer develop such a store in a language such as ColdFusion. You may not get as sophisticated site, and it may cost more in the long run if you start to re-invent the wheel.

The best bet is to look at both possibilities and pick a solution that is in-between.

In conclusion
Online commerce is similar to the mail order business, except that it has potential for worldwide markets. You must not only promote your Web site, but you must also make it easy to find, select and purchase the items. Delivery and support issues are similar to that in mail order.

To set up your own online store, you can either purchase eCommerce software or have your capabilities custom programmed.