So have you heard of this yet? I didn't until yesterday when I came across an article on it, it's called Amazon Mechanical Turk AKA MTurk. MTurk operates a marketplace for work that requires human intelligence. The MTurk web service enables companies to programmatically access this marketplace and a diverse, on-demand workforce. Developers can leverage this service to build human intelligence directly into their applications. If you're looking to make a few extra dollars you can also sign up as a worker to complete the HITs (Human Intelligent Tasks). Most of the HITs are pretty easy and don't take very long to do. I just got accepted as a worker today and tried a few. I thought I'd give it a shot to see what it's like. If you want more info check out the Amazon Mechanical Turk (MTurk) page.