You might be wondering that why can't you earn money from wordpress by signing in with Google adsense. But the problem is that wordpress hosted accounts don't have permission to do so. So now you can't earn anything by writing on your blogs even in million years. However Blogger rocks this field by allowing you to create an adsense account and place ads. You get paid as pay per click. That is, more people click on your ads, more you earn. The new blogger is fully integrated with Adsense. You can easily sign up and create ad units within Blogger itself by clicking on the "Earnings" tab in your dashboard. Once you have signed up, you designate where you want us to show the ads and they will deliver it once your application has been approved. Getting approved is a bit difficult, all you need is good content for that. If you are an original blogger and you have sufficient amount of content, you can get through it.