If you go to Google.com and do a search for almost any keyword phrase, you'll notice some "Sponsored Links" that appear on the right side of the screen that are relevant to the keywords you just searched for. Website owners pay Google to display these ads and are charged a predetermined amount every time their ad gets clicked by a web surfer. With the AdSense program, you will display these same text ads on your site just like Google and get paid for it as well. All you do is copy and paste some provided HTML code into your pages and Voila! the ads will show up. Every time an ad is clicked on your site, you will receive a certain percentage of what Google receives from the advertiser. Once your account reaches $100, you'll receive a check in the mail.
Thier is a little more to it than that. You have to make a website and get traffic to your site. You will be paid a percent of the cost of the ads and alot of ads pay pennies not dollars like alot of people say. If you make sites for high paying ads you will have millions of other sites you have to rank higher in search results to make money with adsense. You can not make a website just to show ads it must have something else on site that relates to the topic.
Really???? No freakin' way! We can really do that? (Methinks someone is trying to get his post count up so he can partake in revenue share)
just visit https://www.google.com/adsense/support/?sourceid=aso&subid=ww-ww-et-asui&medium=link to find your answers