There is something about content creation like online training courses that makes learning so easy. They are affordable, convenient, and accessible everywhere. More and more programmers, bloggers, and experts are now teaching online so that now there are so many high-quality courses available on the internet to learn almost anything. It wasn't like that a couple of years ago when books and tutorials were the primary resources for learning new skills, but there is a huge potential still for both learners and creators when it comes to creating and selling online courses. You can easily make 10K USD per month by selling online courses and more importantly can make a difference in people's life.