The Amazon Mechanical Turk program is a crowdsourcing internet marketplace where software developers and businesses post tasks that need to be completed by humans. These are tasks that vary but require some human thought, action or decision making. Some tasks pay very little, pennies per task, other provide a more lucrative payout, especially longer tasks or ones that require some sort of special knowledge or language translation.
Mechanical Turk tasks rewards range in value from a few cents per item up to $50 or $60 per task. Many of the higher earning tasks involve transcription of different types of media, including video and audio files, into text based documents. The transcription can be voicemail messages, legal depositions, medical transcriptions and other related things.
In order to get into the higher earning tasks you may need to take a qualification test in order to prove you are capable of performing the tasks satisfactorily. Once you have passed the qualification test you will have access to the higher earning tasks.
While you may need to put in some effort becoming qualified for the higher earning tasks, the rewards are worthwhile. Tasks that pay $50 and up may take an hour or two to complete. Completing just a couple of these tasks each day can easily earn you more than $300 per day.