Manually inserting Adsense ads in the middle of posts in Blogger is pretty simple, just follow these steps below:
Search for <data:post.body/>
in the view of html mode of your template editor.
And replace below code on second <data:post.body/> ( if not working please try the third <data:post.body/> )
<div expr:id='"adsmiddle1" + data:post.id'></div>
<b:if cond='data:blog.pageType == "item"'>
<b:if cond='data:blog.pageType != "static_page"'>
<div style="clear:both; margin:10px 0">
<!-- Add here the code of your ad -->
</div>
</b:if>
</b:if>
<div expr:id='"adsmiddle2" + data:post.id'>
<data:post.body/>
</div>
<script type="text/javascript">
var obj0=document.getElementById("adsmiddle1<data:post.id/>");
var obj1=document.getElementById("adsmiddle2<data:post.id/>");
var s=obj1.innerHTML;
var r=s.search(/\x3C!-- adsense --\x3E/igm);
if(r>0) {obj0.innerHTML=s.substr(0,r);obj1.innerHTML=s.substr(r+16);}
</script>
And now place your encoded ad code below <!-- Add here the code of your ad -->
Save the template.
When you make a new post , go to html view and place
<!-- adsense -->wherever you need to display google ads .
