This actually isn't a scam. It doesn't cost you anything to do it. But you'll find it very hard and a lot of work to earn $100/day. Basically, you're get people to complete CPA offers (cost per action). These are things like filling out surveys, etc. in return for some form of compensation. You keep some of the payoff and give them the rest. I guess it is kind of a scam, but one against the advertisor, not the participant. The advertisors are paying people for clicking through their ads based on a projected return rate in sales. They expect that you are keepign the money for yourself and helping them to reach people interested in their product. But the participants in systems like this aren't really potential customers interested in the product, they're just doing it for the payoff. The advertisor is paying for what they think are legit leads, which really aren't. And, depending on how this is set up, you could be charged back for any payment made to you if they catch on to what you're doing.
But it's not an MLM or anything like that. You do have the potential to make money and have no risk. It's just that the potential is vastly overstated in most cases.
"I am a <banned> liar." -Mr.Brightside