Hi Skysaint.Thank you very much for your helpful ideas and your informative post. I like your definition about passive income.Yes,I agree with you that passive income is the act of earning without having to engage in any work for it. Some people may think that it is too good to be true. However, through referral programs, you can earn money passively.The question is which sites offer good referral programs and which sites are legit and trusted ones. Because it would not be nice to waste your precious time working on fake sites. Another good idea is investing in cryptocurrency but there is some risk in this investment.