Abstract
Over the past few years, the advent of the Web 2.0 or the "social Internet" allowed almost every existing website to integrate social elements into the content it produces. Facebook, Twitter or YouTube are often cited as perfect examples of how this social revolution has reshaped the way we communicate. There have been several changes in other areas as well. The practice of online journalism, which had begun long before Web 2.0, has been deeply affected by the implementation of social features on websites of newspapers. Today, the most concrete expression of this transformation is undeniably the presence of commenting systems on nearly every informational website, whether it is a newspaper website, a blog, or a participative platform.
