Why and how does testing offer opportunities to Internet marketers?

Testing helps for direct marketers that want to “test” how popular a product is, and if the advertisements and marketing strategies are successful. Most testing use to be done through the mail and telephone, but with the internet a marketer can get results in just a few mouse clicks. It helps determine if a product is popular enough to keep on the shelves, and it also tests to see the popularity of advertisements and if the right demographic groups are seeing the advertisements and marketing. It can also see how effective the marketing strategy is and how it can be better utilized.