Pyramid schemes are nothing new. For example, in the 1920s, Charles Ponzi promised investors high returns on postal reply coupons, using the money from new investors to pay returns to earlier ...

Have you ever heard of someone who claimed to make a lot of money by investing in a new cryptocurrency or a trading program that promised high returns? Did they also tell you that you could join them ...

You might have seen the famous pink Cadillac driven by successful Mary Kay salespeople. Or, maybe you noticed someone on your Instagram feed showing off their Herbalife swag along side images of their ...