Theses sites can help if you are unemployed and need some money, or study and no pay rent, combine with surveys and micro jobs can give you a little $150 per month, is not much using only 4 hours of your day, you cant be rich with it, but can give a small help for users to create another big thing, if your fixed service is giving you some stress, and you no have childs or so much bills and live with your parents can be good just to receive a little money to pay your studies,but is not possible survive of theses sites like, earning like $300 per month, much hard, working in thoses small sites are all about what you can do now? if you compare micro tasks sites like sproutgigs and microworkers with sites like yandex toloka and appen the payment is totally different, both ways u are selling your time, but with appen and yandex you can earn up to $50 per day some times, impossible in sample microworkers sites, because u are working in theses sites so, the first point of you need work is complete, now the second point is, how much u are earning? you need stop compare what you gain with others carrers that are paying much than microjobs, or you gonna be depressed, like oh i worked today and i earned $8 doing 8 hours online, oh but a banker can receive up to $1200 montly only working 6 hours per week
stop this, work quiet,treat as a job, and earn your money and study to get a better way to earn money, what i reccommend is you select good sites to earn, do like 4-6 hours daily if you no have much bills and you live in 2 or 3 countries, work in theses sites daily, and use 2-4 hours to study freelancer,seo,traffic,and others ways to earn money that will give you the opportunity to scale to big values a good wage, because some jobs can pay you a good value, but your time here is a big trade, like some jobs you work 8-10 hours and can be stressful, and can trouble your life,and the bad of working to others is that everyday you need go to your company work to a boss,some people don't like working to others, but gabriel i just need like $7 daily, i'm doing a carrer study, i just need a little money to help a little my parents the time i study but jobs here just want me working 9 to 5,so i wake up 8 hours to go to the job and come here in house 6 hours and i'm tired to study and if i study i don't live if i live i don't study, what i can do? so micro jobs and surveys are here to help you this, you no gonna earn much from your effort, is just a help to pay light and water and internet connection and some bills
if you are from usa is impossible u do jobs in theses start a average sallary is $10-15 hour, you cant get this even working 8 hours in sample micro works
so is a little complex trading your time for a litte money.