Many years ago, I was active on HYIPs (High Yield Investment Programs), Ponzi schemes, MLM (multi level marketing programs), and online gambling. I made really good money with HYIP and Ponzi schemes. I was using multiple platforms and I made money on some platforms and lost on others, all in all, I made profits in the end. However, these days I do not use risky programs. It's not always a guaranteed way to make money from these programs and involves significant risk.
