I will give it a try, looks like a new concept similar to freelancing. But I see Machine Learning development also listed, so need to create account and see it myself what we can do. May be Amazon is eying this new segment.

MTurk offers developers access to a diverse, on-demand workforce through a flexible user interface or direct integration with a simple API. Organizations can harness the power of crowdsourcing via MTurk for a range of use cases, such as microwork, human insights, and machine learning development.