BUXP

BuxP is one of the most stable PTC sites today, it’s only slightly behind ClixSense when it comes to business stability. They have several programs where you can earn money from, like viewing videos from Youtube and Vimeo, viewing ads, doing tasks, browsing offer walls and their affiliate programs. However, it’s hard to earn decent money from BuxP if you don’t have direct referrals. It took me a month before earning a dollar from viewing ads, and roughly another dollar from doing tasks.
Buxp also has unlimited referral program, which means you can refer as many members as you can. Though you can buy referrals from BuxP, we don't recommend it due to inactivity issues. You can upgrade your membership to help you earn faster, this will double your commission from your referrals. And as a premium member, you will have the benefit of replacing inactive referrals for free (limited). The only good thing about buying referrals is you don’t need to pay monthly fees to keep them, unlike rented referrals who will drain your pocket from renewal fees.
Buxp has been online for 7 years and remains one of the top PTC sites in the business. And like the other PTC sites above, this site has never missed to pay a single member. It is very stable and very reliable.