As an affiliate, all you have to do is sign up for a ClickBank affiliate account and then start browsing their marketplace which lists all the available products from their partner vendors. Once you find a good product (we’ll get into that in a moment), ClickBank will give you a unique “affiliate link” that points to the vendor’s sales page. All you have to do then is make people buy through that link. You earn a commission for any sale made through your affiliate links.
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 ..