Just saying, Mechanical Turk is a pretty bad way to earn money. You can spend hours doing tasks and only earn like four or five bucks.
There are sites like GlobalTestMarket and Opinion Outpost that pay you to do surveys. They'll offer you a few surveys each day; for each survey you complete, you earn points. These points can then be traded for charity donations, gift cards, or actual money deposited to a bank account. The catch? You'll only qualify for maybe half the surveys offered. And to spend your points, you'll have to spend a minimum amount which usually takes around a month's worth of survey taking to reach.
If you're looking for some spending money and have some free time on your hands, MT and surveys are fine. But if you're looking for more of a livable wage, you can probably find better ways to do so.