In some rare cases, you may have heard of AdSense publishers making $20,000 or more each month. Those are rare cases, but it’s possible to build a decent revenue stream with AdSense if you manage the use of the ads carefully on sites that are very well designed. Is it likely that you’ll get rich? No.
What is likely is that you might be able to make enough to cover your Web site hosting or even enough to cover your mortgage. AdSense definitely has the potential. How you manage the program combined with how well your site is designed and the amount of traffic that your site receives determine how much you make.