Let me tell you a site that is not scam and absolutely free to join plus pay your hard work for them :
AWSurveys is a site that will pay you for every surveys you've done. Membership at A.W.Surveys is Free and you won't be asked to pay any membership fees or any extra expenses out of pocket. It also accepts members from around the world. We consent in any country that grants the use of Paypal.
Why do I get paid for partaking my thought and completing surveys?
Companies expend million dollars every year proving to win over consumers that their products are the best and to buy their products and services. They accomplish this by acquiring an interpreting how people believe and shop. Acknowledging this, companies are willing to pay you for your thoughts. Overall your thought could support the companies to advance their products and services.