like – The unofficial WordPress Plugin Directory

Pro Like Button

Adds buttons to posts with the ability to sort them.

Use this plugin to apply floating shares to your posts and pages.

A WordPress.com Like plugin for self hosted wordpress sites

Just another social icons plugin, but with funky likes, followers, +1 counter and childishly simple configuration!

CasePress UpVote – posts and comments rating system.

Provides a +1 button from Google+ beneath each post/page.

This plugin allows your visitors to share your posts on Facebook and Twitter, without JavaScript or iFrames.

A filtering Plugin to show contents per category nicely

Плагин лайков для ваших постов.

This plugin allows you to show user avatars below activity who liked that activity before