1. Log in to Blogger.
2. On your 'Dashboard,' you'll see a box titled 'Make Money.'
3. Under that you'll see 'Use AdSense to earn money with your blog.'
4. Next to that you'll see a link 'New Easy Signup.' Click this link.
5. On the new page, you'll see 'Select Ad Format' and a drop down list.
6. Select the type of ad you want on your blog. Clicking on the 'Next Format' button will show how the ads will appear on your blog.
7. Next you can select the text colors in the ad boxes.
8. Once you've finished, click the 'Save' button.
9. You're done! AdSense ads will now appear on your blog.