Facebook recently launched a commenting platform for third party publications. If you are logged into Facebook, you can easily make comments on websites that use the plugin like TechCrunch.com. Before Facebook launched the commenting plugin, the two big players in this space is Disqus and IntenseDebate.

Facebook has conquered the world of social networking, photo sharing, instant messaging, video sharing, and even Hollywood through The Social Network movie. What’s next? They want to take over comments on blogs and other online publications. Facebook would be the comment management system and the engine that drives blog comments.

Disqus is a popular blog commenting service that reaches about 200 million people per month and is integrated in over 500,000 websites. Now the company is rolling out a new version. Version 4.0 has a new design and a new commenter dashboard to manage all comments. There are also pro add-ons that can be purchased.