Google Adsense is the largest ad service program in the world. It's quick and simple to use. If you have a website, you can utilize adsense to make money.

You just open an account, copy some html they give you and paste it into your webpage(s). You are paid both on per click and per thousand impressions basis. It's the quickest way to start making money with your website.

https://www.google.com/adsense/login/en_US/