What do people want to learn about? If I made a e-course?

I'd like to see about starting some ecourses and trying to sell them or at least give them away.

What do people want to learn about right now, do people want to learn about e-commerce starting a business selling a business growing a following making quick money etc? I thought about making a first E-course about where to start in business and maybe make four different levels such as beginner novice intermediate and expert? What does everybody think I'd love any input possible :-)