1. Log into your AdSense account.
2. Choose your ad units--text, image or both. Choose the ad format and colors.
3. Generate and copy the AdSense code.
4. Sign into Blogger and go to your Dashboard.
5. Go to the Edit HTML section of your template. Find the code that looks like this:
6. Paste your AdSense code immediately under that line.
7. Save template and republish blog.