Cafe Press: This website allows you to create digital designs that can then be sold on the platform. You'll earn a commission for everything that sells and you'll never have to deal with printing, warehousing, customer service and so on. The site has over 2 million independent designers that have created products being sold online here. If you have some graphic design skills, then this is a great potential source for your web-based income.
Did you know you can make money simply by owning a car? It's true, thanks to a company called Turo. Turo is a “car sharing marketplace.” Next time you're in a new city and need to rent a car–instead of using an airport car rental, you could use Turo and rent actual people's cars! (Similar to how Airbnb replaces hotels). Turo lets car owners earn money in three ways: local pickup (renting your car from your own driveway); delivering your car to local places; and also by leaving your car somewhere to be picked up (such as at the airport). Earn Money with Turo.
If you have a propensity for writing and you can slay with your prose, consider writing an ebook. While the market has certainly become saturated as of late, books that help teach people about a technical topic still sell extremely well. This is a great source of passive income but does require a large amount of effort at the outset before any money is generated.
Whether you have a website or are still dreaming up ideas for a blog, you can also look into affiliate marketing. With affiliate marketing, you partner with brands and businesses within the content of your website. If you mention a product or service, you link to that produce or service using a unique affiliate code you received when you signed up for that particular affiliate program. From there, you’ll make money any time someone buys a product or service through your link.