Facebook has launched the Comments Box plugin for mobile, which aims to help media sites interact with readers across the web and mobile devices.

The plugin, which is part of Facebook’s Social Plugins, allows an individual to comment on a news site regardless of where he or she is reading it. According to the social network, over 400,000 sites – including the Statesman Journal and the Detroit Free Press – have already integrated the plugin.

If you have already installed Comments Box you will notice that the plugin automatically appears on the mobile web version of your site. Facebook hopes that the latest update will make commenting more social, improve the quality of conversations online, and ultimately drive more traffic to media sites.

The social network has also added a Subscribe button, which lets other readers subscribe to a commenter’s public Facebook profile. This could really help to boost referral traffic as frequent commenters publish articles to their News Feeds.

Additionally Facebook hopes that the Comments Box plugin will help to reduce trolling and increase the quality of conversations by making readers log in with their real identity, versus leaving anonymous comments. You can learn more about the plugin’s technical details on Facebook’s Developer site.

[Via: Mashable]