Selling Digital Courses is one of the best ways to make money online if you have the skills to create courses. However, in order to make money you need to sell courses, and you need to market your courses to generate sales. One of the interesting tactics that work is offering a free course to attract students and build a positive reputation. Once you have a lot of people using your free courses, you can use your reputation to sell a more comprehensive paid course. People who liked your free course would certainly join your paid course. People who read positive reviews from your students who attended free courses will also be encouraged to join your paid course.