So how do ptc sites work? Put simply, advertisers pay the ptc for visitors and the ptc members get paid to click the ads. This works great as long as the owner does not set it up in a ponzi fashion. If it is set up as a ponzi, the owner is paying out more than he is taking in by stalling and holding payments untill he has the money from new sales. These sites typically claim to pay 1 cent per click and 1 cent per referral click. These sites always take longer and longer to send your payment request and eventually they fail and lose everyones money. So as a rule I will join a PTC sites that says "up to 1 cent per click" because those sites usually have very few 1 cent ads and have no payout problems but the 1 cent per click and 1 cent per referral sites are dangerous to upgrade in due to their short life expectancy.
