1. Using adsense code in beta template by Loui$$.
2. Using adsense in posts by Deniz.

I recommend checking those out before proceeding with this hack. As always, please back-up your template before proceeding with this hack as you will be modifying some important portions of your template. Now for the hack. Simply look for:

<p><data:post.body/></p>

in your template’s <div class=’post’> section and replace it with the code given in code boxes below:
([Your Adsense] in the each of codes given below must be replaced with the adsense code of your choice)

1. This code:
(if you are not using any hacks like peek-a-boo posts, selective expandable posts or peek-a-boo on label, archive and search pages)

      <b:if cond='data:blog.pageType == "item"'>        <p><table align='center'><tr><td><center>[Your Adsense]</center></td></tr></table><data:post.body/><table align='center'><tr><td><center>[Your Adsense]</center></td></tr></table></p>      <b:else/><p><data:post.body/></p>      </b:if>

2. This code in bold-italic (If you are using Peek-a-boo posts hacks)
(If you are also using the peek-a-boo on label and search pages hack, then there may be some confusion regarding which <p><data:post.body/></p> must be replaced with the code given below. Therefore, I have included the peek-a-boo code as well so that you can easily locate the correct instance of data:post.body/ in your template.)

<div class='post-body' expr:id='"post-" + data:post.id'><b:if cond='data:blog.pageType == "item"'>        <p><table align='center'><tr><td><center>Your Adsense</center></td></tr></table><data:post.body/><table align='center'><tr><td><center>Your Adsense</center></td></tr></table></p><b:else/><style>#fullpost {display:none;}</style><p><data:post.body/></p><span id='showlink'><p><a expr:onclick='"javascript:showFull(\"post-" + data:post.id + "\");"' href='javascript:void(0);'>Continue reading...</a></p></span><span id='hidelink' style='display:none'><p><a expr:onclick='"javascript:hideFull(\"post-" + data:post.id + "\");"' href='javascript:void(0);'>Excerpts only...</a></p></span><script type='text/javascript'>checkFull(&quot;post-&quot; + &quot;<data:post.id/>&quot;)</script></b:if><div style='clear: both;'/> <!-- clear for photos floats --></div>

3. This code in bold-italic (If you are using selective expandable posts hack)

<div class='post-body' expr:id='"post-" + data:post.id'>

      <b:if cond='data:blog.pageType == "item"'>         <style>#fullpost{display:inline;}</style>   <p><table align='center'><tr><td><center>[Your Adsense]</center></td></tr></table><data:post.body/><br/><table align='center'><tr><td><center>[Your Adsense]</center></td></tr></table></p>

      <b:else/>         <style>#fullpost{display:none;}</style>

<p><data:post.body/></p>

        <span id='showlink'>         <a expr:href='data:post.url'>Read More......</a>        </span>        <script type='text/javascript'>          checkFull(&quot;post-&quot; + &quot;<data:post.id/>&quot;);        </script>      </b:if>      <div style='clear: both;'/> <!-- clear for photos floats -->    </div>

Hope this becomes the tipping point in your adsense revenues graph

Well, I had no new ideas (except for a few which require CSS knowledge) so I have no new hacks of my own as of now. However, this post points to some good hacks/add-ons/template mods that I have seen in the neighborhood recently:

1. Hacked Son of Moto template by Deniz of imessengr.
2. Adsense beside your posts in blogger beta by Deniz of imessengr.
3. Adsense between the posts (adding adsense directly to the beta template) by Loui$$ of Blogging No Secret.
4. Template theme switcher (and tutorial to host Blogger Beta CSS externally) and hacked Blogger templates with this functionality (inbuilt) by PurpleMoggy.

In addition, I have found my interaction with Deniz and posts from “Blogging Secret” very informative with reference to Adsense related tips (especially for Blogger Beta).

BTW this post is done directly from a nice but nifty Firefox extension called Performancing. I really like their idea/design and concept, especially because I am yet to see my first post from Google Docs appear on my test blog.