This text inquiries the activities offered online during the French presidential campaigns, from 2002 to 2017. The international literature, focused mainly on the US and the UK examples, posits that the emergence of the interactive “Web 2.0” has led to a closer association of digital users to campaigns, particularly after Obama’s campaign in 2008. Looking at the French context since 2002, this paper shows that the roles proposed to Internet users in digital campaigning actually vary to some extent with the transformations of socio-technical devices, but is also linked with the political orientation of the candidates and the particular modes of competition within a given electoral situation.