there's a difference between an MLM and a ponzi

http://en.wikipedia.org/wiki/Multi-level_marketing

http://en.wikipedia.org/wiki/Ponzi_scheme

as it seems to me, this is a MLM scheme
however, any sort of product should be introduced so there's actually something you sell instead of just a membership
like an e-book or something

though, I don't have anything against ponzis as long as everyone investing knows what it is and how it works