If you love leaving customer reviews on sites like Amazon, it may be beneficial to look into affiliate marketing as a source of income. Word-of-mouth advertising is still a huge lead generator for many companies, and a lot of businesses are willing to share a portion of their profits with persuasive individuals who will promote their products to the public.
One of the most important internet marketing strategies is to develop every customer's lifetime value. At least 36 percent of people who have purchased from you once will buy from you again if you follow up with them. Closing that first sale is by far the most difficult part -- not to mention the most expensive. So use back-end selling and upselling to get them to buy again: