First We really like the Joomla content management system because it is pretty easy to use, can be search engine optimised and with extensions is a very flexible web development platform. but it unlike Wordpress and drupal doesn't come with a comment system pre-installed in Joomla! 1.5 Version (Joomla! 1.6 will be).

So today we're going to talk about comment extensions for Joomla, few of them are commercial, if you know some more effective comment form extensions, feel free to add them in our comment section!

          1. RokComments | Demo | Download

RokComments is a complete rewrite of the ever-popular RokIntenseDebate plugin. We've added support for Disqus and JS-Kit.

          2. !JoomlaComment | Demo | Download

JoomlaComment is a beautiful and useful comment extension Fast and easy to install and configure, with AJAX functionality, captcha protection, template based design and multiple language support.

          3. Jcomment | Demo | Download

JComments allows to website visitors to leave comments to any published materials. It provides the flexible system of access rights settings, wide possibilities of custom view setting, uses the AJAX technology and provides many other features.

          4. Zimb Comment | Demo | Download

AJAX-style commenting system for Joomla! articles. Component also includes a simple backend administration tool to unpublish/delete comments. Support CAPTCHA, BBCode, IP Address capture. Also allows disabling comments at the article, category and section level. Limited CSS Customization is also available.

          5. Disqus Comment System | Demo | Download

It currently powers the discussion on thousands of blogs and now with the "Disqus Comment System for Joomla!" plugin by JoomlaWorks it's easy to add Disqus on any Joomla! website or blog!

          6. Chronocomments | Demo | Donwload

Full AJAX Powered threaded and stylish Joomla comments system, its only very simple if you are alooking for a simple one, CAPTCHA for preventing SPAM (and built in spam protection, you may not need the captcha!

          7. YvComment | Demo | Download

yvComment is the first native Joomla! 1.5 Commenting solution, it is well documented and free.

          8. Commentator | Demo | Download

Commentator a very simple comment system for Joomla! our focus is to be the most flexible of all comments systems. It takes all advantages from the new MVC Framework and can be used by any 3rd party Extension,

          9. RDBS Comment | Demo | Download

RDBS Comments is a commenting system for Joomla! with the focus on accessbility, developed with MVC-Pattern, Comments on Comments (comment tree). support joomla k2componen.

          10.  Jom comment | Demo | it's commercial

It's The Best Comment Component that I've ever used.I installed it in my Joomla! site and it works like a charm.Easy to configure with a lot of features to get it working just like you want it.

          11. Urcomment | Demo | it's like Jom comment, commercial too!

Ajax-based, first of its kind comments extension that supports YouTube video, includes sleek comment themes and emoticons. UrComment also supports trackback, social bookmarking, gravatar, powerful Akismet spam filter, ban IP control....

          12. Jxtended Comment | Demo | Commercial

Comments, Ratings and Social Bookmarking brings your site alive and allows your audience to interact with you and each other.