Alibaba is a Chinese eCommerce store that matches Chinese suppliers with buyers all over the world. Prices are extremely cheap, providing the possibility of large profits. However, with the potential profits comes more risk. As you are dealing with suppliers in China, if the quality of the product that arrives isn’t up to standard there is little that you can do about it.
Yaro, this is a great post! Personally, I have banners and other advertising avenues. I am surprised though that you don’t mention Adsense as it fulfills all your criteria: It is easy to set up, it is totally automated and you don’t need to do anything and it is totally passive. It will perhaps be of no use to you, but to beginners, I think it should be a good option, don’t you think?
What’s the catch? None, really. Cash back apps act as affiliates for many online merchants, which means that whenever you make a purchase through one of the apps, they get a small commission — but then, they give you a portion of that commission as “cash back”. For example, if I buy a pair of Nike shoes through the Ebates app (or website) and spend $75, Ebates may get a $10 commission but then they’ll pass $7 back to me. It’s basically a way to get sale prices on stuff that isn’t on sale!