ptc site (also known as paid to click site) is one of the ways people earn some money from online. these sites eventually pay members to click ads. although, most of the sites are scam, there are some legit ones too.

now the question is, why should someone pays you just to click ads? in other words, where do these sites make profit from it? the answer is, they get money from advertisers as well as upgraded membership fees.

joining a ptc site is usually free for members, but one can upgrade their membership by paying some fees. upgraded members get more benefits. from upgrading membership fee, the site also gets some money to pay the members.

usually legit ptc sites offer upto 1 cent per click and they set a minimum payout, members have to reach that limit in order to get paid. members can earn more by upgrading their membership or buying referrals.

you can refer someone, and if the person who joined under you starts clicking, you make money too. if you can't refer someone, you can buy referrals from the site. that's how ptc sites earn too.

it's a risky buisness, but some sites are quite successful.