Search engine marketing and search engine optimization are critically important to online businesses. You can spend every penny you have on a website, but it will all be for nothing if nobody knows your site is there.

Whenever one or more components of a company's business model changes, new business models are created for supporting companies. The changes might involve niches served, new marketing angles or improved value propositions.

Many people bypass search engines altogether and still find what they're looking for online. These Internet surfers are using direct navigation.

Everyone knows what search engines are. But relatively few know how to use them effectively.

Online business models are still evolving. New and different products and services pop up every day. This gives rise to supporting products and services. A business can make substantial profit by helping others execute their plans for making 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.

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.