Slice the Pie is a site I use quite frequently. All you do is listen to music and rate/review it. You'll get paid anywhere from six to seven cents up to sometimes seventeen cents per song you review just depending on if they have any promos going on. It only takes a few minutes to review a song. They pay out on Tuesdays and Fridays and you must have a minimum of $10 to withdraw your earnings, but this is very possible to do twice per week.
If you have previous experience as a computer programmer or have skills in this field, then there is plenty of work you can pick up as a freelancer. If lack of confidence is holding you back, then Free Code Camp is an excellent way to get your foot in the coding door. This organization provides free courses where you will build real-life apps and programs, giving you experience and plenty to add to your CV.
Completing paid surveys is one of the most popular ways to earn extra cash online. There are entire websites devoted to nothing but surveys that you can register with and be paired with surveys that best fit your profile. You will get paid according to the terms listed at the beginning of the survey and will have the chance to add some extra money to your wallet. When taking surveys, it is important to be honest and take them seriously because you can be banned from the site the researchers determined you did not put any effort into your answers.