If you are a good marketer, you can sell anything online. But how do you do that? Well, you need marketing skills and some money to run ad campaigns. Let’s say you have created a course that you want to sell. How do you do it? Well, offer the course for free to the first 10 people who sign up and ask them to leave 5-star reviews in return. Most people are happy to do a favor, so you can easily get at least 5 positive reviews. These reviews will help you sell more courses because positive reviews boost confidence