LinkWithin is a related posts widget with photo thumbnails which will links related stories from your archive under each story on your blog.The widget links to stories that are relevant and interesting to readers of a particular post, keeping them engaged with your blog, and increasing your traffic.
The interesting things about Link Within is it doesn’t just display a list of headlines under each post, but also a thumbnail with a picture from each post, which makes it far more attractive than most of other plugins.
See the following Screenshot for details :
LinkWithin plugin is available for WordPress, Typepad, and Blogger, though LinkWithin will also provide you with a code snippet that you can use on other blogging platforms.
Links: Download Widget