Barc Chat combines a feature-rich chat room and clean design, encouraging real-time interaction between your visitors.

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This plugin integrates Cackle Comment System (Google+, Twitter, Facebook, VKontakte, Odnoklassniki and other) right into your website.

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Easiest and most lightweight plugin to let visitors subscribe to comments and get email notifications.

(25)

Kick spam with a highly advanced email validation in comment forms, user registration and contact forms using Mailgun's Email validation service.

(25)

wp-monalisa is the plugin that smiles at you like monalisa does. place the smilies of your choice in posts, pages or comments.

(24)

A simple and easy to use plugin that turns post, pages and custom post types comments into reviews.

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Disable Comments - easy tool to disable comments for your blog posts, pages. Admin can disable comments in just few clicks.

(22)

An admin interface to control the default comment and trackback settings on new posts, pages and custom post types.

(22)