The purpose of this essay is to shed light on the uses of Twitter by Radio-Canada journalists. It is a reflection that in no way claims to be an exhaustive inventory of the uses of all Radio-Canada journalists. Rather, it will be a matter of randomly selecting certain Radio-Canada journalists in different Quebec bureaus to observe and describe how they have integrated Twitter into their professional activities. In the same way, by exploring these uses, we will be able to question researchers in the fields of innovative journalism practices to determine with them whether the Twitter device is sufficiently anchored in the professional customs of journalists in certain Radio-Canada newsrooms and the added value that the use of this social media brings to the advancement of journalism in Quebec and in competition with those who do not use it systematically.