Unlike as in first type of Blogger widget , Linkwithin plugin doesn’t add any seo enhancement to a blog . It just collects some images from the similarly labeled posts and list 3 of them along with anchor text . So if you are using Blogger , I advice you to use both Linkwithin and normal Related posts widget . You can see a demo in my blog .
Visit Linkwithin .
Installation is pretty much easy here .
Enter your email >blog address >select suitable blog platform and grab the widget code . Blogger users can make use of widget auto installation feature .Others including WordPress will have to upload the plugin files to the corresponding directory and activate via plugin management .