They include sites that seem to be their competitors because they earn referral fees when you buy memberships. A couple mentioned in scam forums even try to dupe you into buying the same list at other membership sites they own under different names. Naturally, these sites also have an incentive to exaggerate how much you'll earn from online paid surveys.

About that money: Survey companies typically don’t pay you for each and every survey—you have to meet a payout amount to earn your reward. Page says it took her months to reach the $30 payout on one survey site—time she could have easily spent on more lucrative side hustles. This presents a problem if you need money fast or if you decide to change course and try something else—you might end up answering tons of questions and never actually see that money.
First, thank you for providing this extensive list. I wanted to offer a quick follow up. After reading your post I decided to give Survey Junkie a try and I’ve already closed the account. Yes, I can tell it’s well organized and it is definitely a user-friendly platform. The problems I experienced were first that not one of the surveys they emailed me about were available. I did, however, complete several surveys from the site itself and I found them to be lengthy – in itself, not a problem, but 3 out of 5 told me I didn’t qualify after I’d already invested 10 – 12 minutes filling out the forms. They got more than enough information from me to be useful which is an old and highly unethical trick in market research – which happens to be my background. All in all, it was a LOT of wasted time.
All of the surveys from RAND Health Care are public documents, available without charge. Please provide an appropriate citation when using these products. In some cases, the materials themselves include specific instructions for citation. Some materials listed are not available from RAND Health Care. Those links will take you to other websites, where you will find instructions for use. There are no further permissions necessary.
OpinionWorld is an online survey panel maintained and operated by Survey Sampling International, LLC ("SSI"). SSI is a premier global provider of opinions and links companies with consumer views. Over 3,000 companies worldwide use SSI to gain insights to grow their business. SSI has 40 years of experience and 32,000,000 surveys are completed annually. SSI has several survey panels including Your Voice in India.
In addition to filling out online surveys for money, you can get rewarded for other actions, too. Some of the best paid survey sites are ones that offer lots of ways to make extra money other than earning money for surveys you take! The most popular websites maintain their following not only by offering various types of incentives but also by providing plenty of different and engaging ways for members to earn money. The purpose of these offers is to turn you into a loyal and active member of their community.
CashCrate. Many sites reward users through a confusing point system, so we appreciated that CashCrate discloses the monetary value of each survey. However, during surveys, we often struggled to determine when we were actually earning money and when we were attempting to qualify for paid opportunities. And after five hours in this confusing process, we didn’t earn enough money to cash out. Read more in our CashCrate review.
Summary: A real favourite, MySurvey is a popular panel allowing members to participate in market research surveys for money, covering topics like the media, tourism and products like electronics. It’s easy to set up an account on the site and begin earning points, which vary between 10 and 500 per survey, but are typically around the 100 mark for an average survey which would take 15 minutes to fill out.
Pinecone Research works a lot like other paid survey sites. Once you sign up, you’ll earn points for each survey you complete. As an added bonus, the responses you give during surveys will help you learn about new products before they hit the market and influence their respective marketing campaigns. And once you start racking up the points, you can redeem them for cash or prizes.
Paid survey site companies invest billions of dollars into marketing research online.  They always want to find out more intricate details of a consumer's relationship with their product.  Whether it's a new television show or just an existing product line, companies like Disney, Samsung, and Sony go to great lengths to find out their ideal audiences.
Survey sites advertise that you can earn $5-$35 per survey (although a Student Loan Hero reporter found an average more in the range of $1-2 per hour). Paid online surveys are utterly ubiquitous—there are hundreds of sites that feature paid surveys. These surveys are typically run by marketing or research firms looking for consumer perspectives, and you could be asked questions covering just about everything under the sun.
It’s easy to earn cash for surveys. How much you get paid completely depends on how many paid surveys you attempt and complete. Each online survey has a different payout, with some offering as much as $50. Most will pay less, but also take less time. Expect to earn about 40 to 200 SB points per survey (100 SB = $1), with occasional opportunities with much higher earning potential.