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.
Congratulations go to Panel Place, which gets 2nd place on the Survey Cool list of the best paid survey sites for 2018, but just what makes it so good? Above all else is the fact that it has a very large number of surveys to choose from, so there really is something for everyone. It does this because it includes surveys available from a variety of other top survey providers, including Toluna and Valued Opinions. It’s available to users across the world as well, and payment can be made by way of a gift card or sent securely to a PayPal account. It’s a deserving number one.