How Much Can You Earn With Google? The amount of money you can earn by applying Google Adsense to your website is unlimited. If is definitely a good idea to have as many websites or blogs as you can. Keep in mind it is only a good idea if you are able to update them and have quality content. This will allow you to really maximize your Adsense revenue. So what are you waiting for start a blog, sign up for Adsense and join the contextual advertising revolution.