Number one, you can sell before you buy. I call it reverse e-commerce. You take a picture, you list it for sale, you sell it, you collect the revenue, then you go buy it and send it to the customer.

Internet entrepreneurs are using technology at every level of their company - from a one-person agency to a small firm, the newest technological advances are interwoven throughout every aspect of Internet-based businesses.

Traditional horizontal search engines cannot always identify the target audience, niche or vertical industry of a page or site. Vertical search engines address this issue by the nature of their design. They identify sites according to more specific criteria and sometimes even by human input.

I ended up buying business.com for $150,000 because I wanted to make it a magazine. It would have been a 'Time'-type magazine: how to do business on the Internet. And I was offered a lot of money for that domain. I played two buyers against each other.

Number one, you can sell before you buy. I call it reverse e-commerce. You take a picture, you list it for sale, you sell it, you collect the revenue, then you go buy it and send it to the customer.

Not long ago, the term 'business model' was not exactly on the tip of everyone's tongue. Then, in the early to mid-1990s, 'business model' became a catchphrase that described how a company makes money or saves money.

Over many generations, fortunes in the business world were made through buying and selling products in physical stores. Internet fortunes have been made buying and selling products online.