EDIT : Please don't go on this website if you are going to complain that you lost your money. This is your responsibility. I am not advertising for it. It's not my site.

EDIT 2 : InsDice.US seems to have replaced ponzi.io now that it is closed. Check the thread for details here :
https://bitcointalk.org/index.php?topic=447060.0

I am locking this thread as it is outdated.

Hi,

This is an example of "legit" ponzi scheme :

http://ponzi.io/

You send money, and you get 120% back when someone send money after you.

It is a pyramidal system where you always get more money as long as people continue to send money.

I found it interesting because it makes you understand how a simple ponzi work.

The big difference with usual ponzi is that everything is transparent because you can check the blockchain yourself.

Of course don't invest money that you can't afford to loose.