Online marketing or internet marketing, refers to a set of tools and methods used for promoting products and services through the internet. These products and services may be ones that you have created yourself or they may be products or services that you promote for somebody else, who then will pay you a commission when you sell them. There are generally two opposite theories on how to start an online marketing business. The first concept of making money online is described as a complicated and expensive issue. The second concept is that you just need to click a few buttons and the money will just roll in.