I have registered on neobux 1 month ago for free and so far I manage to make 2$ including 3 rented referrals and its going well for me. It is the best PTC( Paid To Click) site that really pays.i know 2$ is not a big amount but atleast I manage to earn some thing without any investment.when u upgadre your earning will gradually increases and you start making good amount of money.