Tobias Nyholm

This plugin is far from fancy. I created this because I could not stand the big complex adsense plugins that 
exists today. This one is small, simple and does the work. It gives you six textboxes where you can write anyting, like ad-codes. 
Then you can display the contents of such box with a widget, a function call och just type <code>[adsense_id="1"]</code> 
in the editor. For more information see installation page or the 
<a href="http://www.webfish.se/wp/plugins/simple-adsense" title="Webfish - WordPress plugin" rel="nofollow ugc">Webfish</a> homepage.

Simple Adsense

Gives you the possiblitity to add your ad-code anywhere. This is a simple plugin compared to those other adsense managers.

fabio.mazzarino

In-Post Template plugin add additional content to posts and pages, inside the_content() data result. It can be used to add sitewide content like AdSense, banners and plugins.
It accepts to insert html, java script, embedded content, php and even others plugins. Template tags are also accepted.
It replaces a special mark added inside the post which can be the  mark or any other configured.

In-post Template

In-Post Template plugin add additional content to posts and pages, inside the_content() data result.

Simple Adsense vs In-post Template