It will cost you nothing, rather you gain more.Though the money is small but little drops of water makes an ocean. For each person you refer you are paid $1. Refer 10 persons you are paid $10 and so on. Payout is when you have a minimum of $10 and it is through Alertpay, Liberty reserve, Perfect money, Solid trust, Western union, Bank transfer etc. You can refer 100 or 200 persons in a day depending on your ability. Visit the link below for registration and more details.
http://incomepart.com/ref.php?page=act/ref&invcod=25263