Working on earning sites to make money is not a passive income method because you will have to work day and night to make money on the sites. For instance, you can earn from paid-to-post forums but in order to earn from these forums, you will have to post on these forums every day, the day you don't post you don't earn money. Just like paid-to-post forums, there are also sites where you can publish articles and make money, however, in order to earn from these sites, you need to socialize. You need to follow other writers, you need to read and comment on articles published by other writers and then they will come back to your articles, tip you, upvote your article, comment on your article and you will earn money. These are not passive income sources. If you are looking for passive income sources, here are some lucrative options. However, these are lucrative does not mean it is easy to generate income, you should still work hard and make these ideas work for you.
Sell digital items: you can sell digital items through your own online store or third-party sites like ebay, etsy, fine art America, etc. You can sell photographs, digital arts, digital printables,