This is one of the most popular Related post plugin for WordPress which every blogger have to try and use it.One of the best feature of this plugin is you can earn money. Simply install it and go to Plugin Settings >> Advertising >> Create a new account and start earning money by showing ads in your site.
This is the alternative to SimpleReach Slide plugin (you will see this plugin details in 4 number).It also increase your site page views by showing relating post. It is also quite eye catching.
3.Yet Another Related Posts Plugin
Yet Another Related Posts Plugin is also very well known as (YARPP). Again one of the most popular plugin which shows related posts in your blog, even I also use this plugin in my blog as you see related posts in the end of the post in my site.
SimpleReach Slide is a plugin which helps your site to increase your site page views, its quite eye catching and allow your visitors to show related posts when he/she comes to your site footer.Many popular blogs using this plugin in their site.
It shows only Related Posts Thumbnails in your blog.I use this plugin in my Wallpapers site.It shows related posts in the end of the posts.