Since its launch in 2010 Udemy.com has become the go to place for people who want to acquire new skills through online video training. There are now more than 30 million students from all over the world and over 100,000 courses available. A lot of online marketers have tried to generate significant passive income through Udemy and have failed. This is because they made a number of mistakes that this guide will help you to avoid. Manu Udemy instructors do not sell many of their courses because there is no demand. In this guide you will learn how you can avoid that very costly mistake. Imagine spending days or weeks creating a great Udemy course only to have nobody purchase it!