Vrajesh Dave

vd likes is a like or unlike to perticular post ,page or anything! 
It provides IP based like unlike system. 
You can set only register user can give liking system from admin panel.

VD Likes

vd likes is a like or unlike to perticular post ,page or anything!

A. Chappard

This plugin provides 4 new template tags to display some informations/actions about posts and comments. This template tags have to be called within the loop : 
wp_postlike(); : Return a link to like or unlike a post 
wp_commentlike(); : Return a link to like or unlike a comment 
wp_nb_postlike(); : Return a text to display the number of like for the current post 
wp_nb_commentlike(); : Return a text to display the number of like for the current comment

Like Posts & Comments

Allows you to add links 'I like / I do not like' to each post and comment.

VD Likes vs Like Posts & Comments