Amazon Mechanical Turk, also known as MTurk, is a website that allows users to earn money by performing micro-tasks. Due to its earning potential, MTurk is often used to supplement income, as a way to earn money while in between jobs, or even as a main source of income for some people. However, Amazon Mechanical Turk can be difficult to join as it's only available to US citizens. Additionally, you will need to link a Amazon Payments account to get paid, and they are known to have a difficult verification process for some people seeking to join.
For those unable to join MTurk, there are some alternatives where you can earn money from similar work, although none are as large as Amazon's program. Here are a few you can try: