If you own an online blog on a specific topic or area, then writing and publishing an ebook is one of the most effective ways to earn money. Websites like Nexus Notes and Stuvia allow you to offer your notes for sale, they take a small cut but you can still earn a substantial amount of cash. Make sure that your notes are typed and not handwritten.
Renting out a space in your home or just a portion of your yard can be an excellent method to earn a little extra cash. You can advertise through sites like Airbnb or local classifieds, as well as word-of-mouth.
If you’re gifted for design logo design, then it’s another way to earn money online. Make sure it does not take over your life!