Paid survey sites are an easy and simple way to earn extra money by taking online surveys. It's a quick and convenient side business that can be done anywhere and anytime, making it an ideal choice for earning extra cash. It's very simple and very quick to get started, to give your opinion and be heard while earning cash. Registration only takes a few minutes and will give you access to surveys linked to your profile. In summary, paid surveys can be an effective method of earning a little extra money online, but it depends on many factors.