Top 5 Related Posts Widgets for Blogger

• Related Posts Widget for Blogger - Show Simlar Articles for your Blog Posts - RealTrix
  
• Related Posts Widget For Blogger - TechieBlogger
  
• New and Improved Related Articles Widget using the new Google's Ajax Feed API - Hoctro
  
• Ajax Related Posts widget for Blogger - Hajunik
  
• Related Posts on Blogger - JackBook

 

Source : http://blogger-dashboard.blogspot.com/2009/07/top-5-related-posts-widgets-for-blogger.html