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This article seeks to explore the use of social media sites by Members of the European Parliament (MEPs) in view of accompanying discourses that tend to celebrate their communicative and political potential. There are undoubtedly novel aspects in the political use of social media sites, but these may not be found where expected. The article demonstrates that the use of social media sites by MEPs leads to a transformation of certain professional practices (listening and speaking), and that these transformations are similar to the ones attributed to professional journalists. The use of digital social networks, such as Facebook or Twitter, does not discourage but rather stimulates the proximity between politics and the media, whose boundaries are already become blurred. This article intends to show how an “ethnography of use” can contribute to a better understanding of the way in which actors use social network sites.