Revenue Details:
Revenue comes from people completing offers. Once they complete their offer they must get an ex # of people to also complete an offer before they can order their prize.

These sites make huge money because most people will get a few people to complete offers, but they won't get to the right # of referals and they give up. That leaves you with money, and them with nothing.

Currently all revenue comes from Incentaclick.com and CJ.com.