Add Related Posts Widget in Blogger

1. Go to your Dashboard > Design > Edit HTML > Check Expand Widget Templates.

2. Find this code </head> 

3. Put this code below, above </head>

<style> #related-posts { float : left; width : 480px; margin-top:20px; margin-left : 5px; margin-bottom:20px; font : 11px Verdana; margin-bottom:10px; } #related-posts .widget { list-style-type : none; margin : 5px 0 5px 0; padding : 0; } #related-posts .widget h2, #related-posts h2 { font-size : 20px; font-weight : normal; margin : 5px 7px 0; padding : 0 0 5px; } #related-posts a { text-decoration : none; } #related-posts a:hover { text-decoration : none; } #related-posts ul { border : medium none; margin : 10px; padding : 0; } #related-posts ul li { display : block; background : url("https://sites.google.com/site/howtohouse/tools/howtohousefavicon-3.ico") no-repeat 0 0; margin : 0; padding-top : 0; padding-right : 0; padding-bottom : 1px; padding-left : 21px; margin-bottom : 5px; line-height : 2em; border-bottom:1px dotted #cccccc; } </style> <script src='https://sites.google.com/site/howtohouse/hth-scripts/howtohouse-RelatedPost.js' type='text/javascript'/>

4. Now, find this code <data:post.body/> . If you can't find it, find this code <div class='post-body>

5. Put this code below, under it :

<b:if cond='data:blog.pageType == "item"'>
<div id="related-posts">
<font face='Arial' size='3'><b>Related Posts : </b></font><font color='#FFFFFF'><b:loop values='data:post.labels' var='label'><data:label.name/><b:if cond='data:label.isLast != &quot;true&quot;'>,</b:if><b:if cond='data:blog.pageType == &quot;item&quot;'>
<script expr:src='&quot;/feeds/posts/default/-/&quot;   data:label.name   &quot;?alt=json-in-script&amp;callback=related_results_labels&amp;max-results=5&quot;' type='text/javascript'/></b:if></b:loop> </font>
<script type='text/javascript'> removeRelatedDuplicates(); printRelatedLabels();
</script>
</div></b:if>

8. Save and DONE!