My favorite type of semi-passive income was rental property because it was a tangible asset that provided reliable income. As I grew older, my interest in rental property waned because I no longer had the patience and time to deal with maintenance issues and tenants. Online real estate became more attractive, along with tax-free municipal-bond income once rates started to rise.
Now, if you choose to deliver part or all of your course in video format, you can use professional video hosting sites like Wistia or Vimeo. Beside giving you the option of removing the hosting company’s logo, these services also provide analytics which can show you how effective your video is at holding your audience’s attention. Alternatively, you can use litmos, a learning management system that enables you to create an online course with your own branding, domain name, and landing page. There is no percentage cut taken from your revenue like Udemy. Instead there is a monthly fee for their service.