Mechanical Turk: Amazon's Mechanical Turk is a resource for doing human-intelligence tasks, or as the site commonly refers to them, HITs. You get paid a very small fee for any given HIT and you'll need a good deal of volume to make a substantial amount of money. But it is a resource you can use in your spare time to generate a small income online.
After being founded by twin brothers Lucas and Lee Brown in 2009, this white-labeled affiliate tracking software has become an industry leader thanks to being innovative and featuring a system that is reliable, scalable, and flexible. Some of the standout features include a two-way API, unlimited amount of affiliates, fraud protection, dedicated solutions option, a mail room, and the ability to convert currencies.