WooCommerce Like Counter
This is a woocommerce addon which helps to put like and dislike
Plugin-Schlagwort: like
NS Like This
This plugin allows your users to save their favorite content, and keep track of their…
Parstools Star Rating
Add fancy star rating to any type of post and page with elegant themes
Filtering Post
A filtering Plugin to show contents per category nicely
MIF BP Customizer
Buddypress features extension plugin for creation of social network site.
Most Liked Posts
Wordpress widget displaying list of posts ordered by number of Facebook likes.
Post Like Dislike
Here is 2 type of voting system Anonymous vote and Registered vote on post .
BAW Like Unlike
Add boutons for "Like" or "Unlike" (can be set up) your posts and pages.
WP Love It
Add a simple "Love It" button to post
CasePress UpVote
CasePress UpVote – posts and comments rating system.
Pro Like Button
Adds buttons to posts with the ability to sort them.
Gravatar Like
A Wordpress.com Like plugin for self hosted wordpress sites
Scrolling Twitter Like Google +1 Linkedin and Stumbleupon
A very simple social share scrolling plugin with just 6 social icons (Twitter, FB Like,…
WP Like System
Rating system for posts, based on Facebook likes. Its not dependent of Facebook.
tinyRatings
Plain and simple ratings plugin. Rate anything.
OExchange
Adds OExchange and Web Intents support to WordPress
Youtube Like Rating
Youtube Like Thumbs Up Or Thumbs Down System For Voting On Posts And Comments.
Fastershare
This plugin allows your visitors to share your posts on Facebook and Twitter, without JavaScript…
Super Blog Pack: Like, Share, Review, Ratings all in one
All in one solution that powers up your blog with likes, reviews, related posts, views…
Share Rail
Use this plugin to apply floating shares to your posts and pages.