Have you ever wondered why restaurants are so packed, malls are so busy, and traffic is horrendous all the time despite the media droning on and on about the underemployed? Well now you know! More people make a lot more money than you think! There is a serious amount of under-reporting of income, and an obsequious amount of over-reporting of how bad things are.
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.