AtticThemes

AtticThemes: Likes simply adds the ability for your visitors to like your posts.
How To Use The Plugin
It is very straightforward, just activate the plugin and your done. No complicated settings, no hustel.

AtticThemes: Likes

A simple way to and liking system to your posts.

aakash1911

WP Likes lets visitors “like” your posts on the fly. No logging in! 
Easily customizable to be used in various other scenarios. 
Shows top liked posts in sidebar widget or on a separate page.

WP likes

WP Likes lets your blog visitors 'like' your posts on the go.

AtticThemes: Likes vs WP likes