Abstract
This essay provides a framework for characterizing changes to social phenomena that accompany the digitalization of society. It begins by discharging two preliminary tasks: presenting the social ontology used in the analysis—a version of practice theory—and surveying extant general accounts of sociodigital phenomena to give readers a sense of the accounts on offer and to indicate through contrast how broad my account is. The starting point for the essay’s own account is the great number and variety of sociodigital phenomena and changes today. The essay proposes to base a general account of this profusion on the notion of form, where the form of something is the features it exhibits in key dimensions of variation that characterize a population to which the something belongs. It is claimed that the four central dimensions of variation for social, and thus sociodigital, phenomena are (1) constitution, (2) interactions and associations, (3) spaces and times, and (4) meaning and significance. Following discussion of this claim, sketches are offered of the forms of four pre-digital social phenomena and four sociodigital ones. A final section offers general observations about how sociodigital phenomena are different in these four dimensions from their pre-digital counterparts.