Build Building upon research in the intersection between sociology of death, sociology of the individual and Information and Communication Sciences, this article studies the way socio-digital platforms, with their different specifications, contribute to re-introducing death into the social`!-- Début du contenu @xml:lang="en" --b‪ sphere and to creating new mourning rituals. Outlining a typology of how memorial websites are used, it shows that post ‪`!-- Fin du contenu @xml:lang="en" --bmortem digital data uses depend on the platforms’ possibilities, constraints and technical formats. S`!-- Début du contenu @xml:lang="en" --b‪ocio-digital memorial platforms, which spawn a specific form of expression, are therefore reconfiguring the communication with the dead – and particularly digital post mortem identity –, and relation to mourning.‪`!-- Fin du contenu @xml:lang="en" --b