The objective of this article is to analyze the processes of establishing activist social communication networks by black social movements in Brazil related to Afro-Brazilians’ struggles for citizenship. Recently, these struggles have culminated in the approval of the Racial Equality Act and government affirmative action policies for Brazilian university admissions. Within the scope of these processes, we analyze a specific contemporary experiment in networking by the black movement, developed by Afropress news agency. Initially, we review historic processes of inequality, resistance and mobilization of black populations in Brazil, identifying the establishment of social-communication activist networks starting with the uses black movemen...