The Google+ and Disques WordPress plugin makes it easier for you to administer and customise Google+ and Disques comment from your WordPress site.

Digress.it lets you comment paragraph by paragraph in the margins of a text

Get email notifications when Facebook Comments are posted on your WordPress website.

The Facebook Comments WordPress plugin makes it easier for you to setup, administer and customise Facebook comments from your WordPress site.

The simplest way to access site with Your Facebook Account.

The Google+ Comments WordPress plugin makes it easier for you to setup, administer and customise Google+ comments from your WordPress site.

Heyoya is a voice comments platform that takes you beyond text. Helping create a meaningful experience for both publishers and site visitors.

Get more engagement with our easy to use commenting system. The setup takes just a few clicks.

Allow an admin user (when logged in) to always be able to comment on a post, even if comments are closed for the post.

The Live Video Annotation plugin allows you to add timed footnotes to a YouTube video. Visitors can see these notes later while watching the video.

Realtime forums and commenting for Wordpress.

Allows users to opt into receiving a notification email whenever a comment is made to the site.

Postmatic integration for Caldera Forms.

Easily subscribe to a P2 comment thread without commenting using a "Follow" action link like WordPress.com has

The new standard in comment subscriptions for WordPress. Two-way email commenting which is intelligent, responsive, and convenient.

AJAX Report Comments is a simple yet powerful add-on for any Wordpress blog, particularly larger blogs with a higher volume of user comments. It provides blog visitors the ability to report an inappropriate comment to the blog's moderator with a single click using AJAX and email.

AJAX comment system. Insert and displays Comments easily and quickly using Ajax style of social networks.

The simplest way to turn your standard WordPress website with a standard WordPress theme into a Social Ecommerce Network.

Real-time comments widget turns your site into its own content-circulating ecosystem.