This plugin helps the visitors of your blog by displaying relevant posts related to their browsing behavior. When coming from a search engine, it will show posts (or pages) related to what they searched for. When viewing a specific post it shows posts with similar tags and categories. When returning to your site after a previous visit it shows a link to the the first page they viewed during that previous visit.
If you have comments, questions or feedback about this plugin, please use the forum on wordpress.org.
You can download the plugin from wordpress.org.