Much of academic communication is nowadays taking place on electronic platforms and on line portals. From academic blogs to research papers available on line, including conference announcements, journal calls for papers, discussion lists, etc., electronic platforms both provide a series of affordances for, and place demands on, users. These new affordances may be reshaping conventional genres,
... [Show full abstract] thus problematizing the conceptualization of genre. The aim of the study is to explore the way online conference announcements become a territory for collective disciplinary interaction and how this interaction is realized linguistically. A corpus of 50 conference announcements included in a major listserv in the field of Linguistics is analysed, focusing on rhetorical structure and interpersonal features such as self-mentions, engagement markers, modal verbs and the use of passive voice. Results show that linguistic interpersonal markers are deployed in the text depending on the various communicative functions the text has, and also on the role played by the writer at each stage. I claim that the new affordances of the online conference announcements may be acting as catalysts for disciplinary knowledge production and community building.