There are three ways to place the adsense code into a WordPress blog theme.
1 – Hard code the generated adsense code for content, adlinks and referral ads into the theme templates as on this blog.
2 – On blog themes that are widget ready you can insert the Google adsense code into a widget to make it appear in the sidebar of a wordpress blog theme.
3 – Use a wordpress adsense plugin in blog posts.
After trying an assortment of WordPress plugins for Adsense the only one which I found to be versatile and compatible with the lastest version of WordPress is:
The Adsense Deluxe WordPress Plugin allows you to place adsense code into the templates or directly into blog posts.
As usual upload this plugin to your plugin folder and activate it in the control panel.
It is very easy to setup, fill in the blanks and you are ready to go.
You can even place css around the adsense script at setup so you won’t have to place the code manually every time you want to place adsense into a blog post.
Once you have written your blog post easily place the Adsense by selecting from the adsense format from the drop down box.
You can also monetize your site using wordpress rotating banner ad plugins with Google adsense.