Based on a monographic analysis of the 'virtual section of the socialist party'?, TemPS r?els, we examine transformations to militant practices concomitant with the appearance of uses of information and communication technologies. We show that traditional political parties are overcoming their historical sluggishness and taking up Internet tools. These tools facilitate a set of innovative militant practices, thus undermining the traditional division within these parties between head offices responsible for programmes and media communication, and grass-roots officers responsible for the electoral machine and neighbourhood militant actions.