Online earning and passive income is not a myth. In past I was also believe that passive income is a myth I was doing a job I was having graphic designing skill so my friend suggest me to go and work online I follow his advice and now I am earning good and I also have a side source of income.
I personally have never had any passive income. I've tried uploading photos to Shutterstock and similar sites, but for me, it was really time-consuming and I haven't earned anything yet. I've noticed that many bloggers participate in affiliate marketing and write articles with affiliate links. That's a good, but definitely not an easy option, and you can't be sure how much you'll earn.