MOST TRUSTED AND PAYING PTC
Here's the list of most trusted and paying PTC sites. I would also recommend reading introdution to PTC guide here and refferals guide here!
Neobux - one of the best PTC sites. It pays 0.1 cents per click and has 4 fixed ads dayli, but normally, you can click much more. You get 0.5 cents per referral click. For each seen ad you get 3 ad prizes, where you can win up to 90$ (yes, it's possible), 1 ad chance, where you can win up to 0.5$, and 1 neopoint, which can be used managing rented referrals, or upgrading account.
Minimum payout is only 2.00$
ClixSense - It doesn't have paid to click ads, but has other sections - Surveys, task and offers. There you can earn a lot of money with a little effort. And, of course, you can refer other people for more money!
Seofast. Good russian PTC site, where you can earn a lot of money. Many PTC ads, paid to visit ads on daily basis, thousands of paid offers
2Captcha is another good site for earning money. It provides short captchas to solve. Average payment for solving is over $0.3 for 1000. The stream of provided captcha to solve is endless, so there is no limit of what a person can earn there. Minimum payout is only $0.5.
DonkeyMails. Site with multiple ways to earn - Paid to click, traffic exchange, paid to promote and many more. And the minimum payout is very low - only 1$.
EasyHits4U. Although it's a bit different from other PTC sites, you can earn lots of money from here. Tested! The difference is that it's main purpose is exchanging credits with other users, but it also pays 0.30$ for every 1000 sites surfed (which means 0.03 cents per site), and since you can watch hundreds of ads daily, you can earn more than 0.1$ only from your clicks!