Money doubler sites how they work

It seems that money doubler sites are the in thing, its looks a good way to earn some money and get products at the same time, it works as members join and purchase their products they are put in line to earn an income, for eg. they purchase a product for $10 and they can get a profit of $20, these sites work well , if members keep joining, the best way to earn is to get in early when they open a new money line,but you can earn in older ones , but you need to wait for your turn.
best sites are the ones paying out a referral commission and a positions.
To see a live site , to see how it works check out link
Welcome To Ez Wealth Doubler