I came across this ClickBank university, recently during the summer of 2017. I am not sure if it was the updated version but, I am glad you reviewed this product. I almost signed up with them, thinking that they would actually provided answers to building a business. For some reason, I changed my mind. Probably because, I knew it had a catch to it somewhere. And, after reading this article. I can clearly see why I did not sign up.
But don't make the mistake of thinking this will be a passive source of income—you're on call whenever you have a guest and you'll always need to keep the place clean for incoming visitors. On top of just renting on Airbnb, consider offering your guests paid add-ons, like Lauren Gheysens', Royal Day Out in London, England—where she gives visitors a local's only tour of the city, complete with bespoke 18th century costumes.
ClickBank represents primarily digital or downloadable products. These typically have high-percentage payouts to affiliates. The commissions average around 50%. You do need to be careful and closely vet all products. There are some great products, some good products, and many crap products. You need to be sure the product and the promotional methods are appropriate for your audience. But ..