Mechanical Turk is Amazon's take on micro-jobs. These are small miniscule-jobs that you can do for other people, which they call HITs, or Human Intelligence Tasks. These are super simple tasks that anyone can do. Some examples are listing off some URLs with certain kinds of images for one cent, or recording a few phrases with a microphone for 6 cents.
—EX. You have chosen crude oil and US-EUR pair to copy/trade, because the data show you for that trader 254% ROI on crude oil and 101% on US-EUR and his risk rate is very low( 4,3%) and success rate is very high( 96,7% ). It can happen ( happened to me) that at some point he/she start losing the money. Here's the catch. He had more money on his account then me, and eventually he made the profit from both trades.
One of the cool things about Google AdSense is that it's so easy to get set up. If you have a blog or website, you can sign up for a free Google AdSense Account. From there, Google will give you a unique code that you will paste onto your website. Google takes it from there, tracking your page views, traffic, and earnings on your behalf. There is no upkeep or maintenance to get this thing going, which makes it a no-brainer if you have a website already.