This work discusses the concepts of Social Movement and Grassroots Movements applied to the Women´s March that happened in Washington, jan, 21 st , 2017. It brings, also, the documental analysis of the digital communication of this movement in three spheres: national, state wise (Maine) and local, focusing the communication efforts made by a group from Mount Desert Island, in Maine. The results bring what Castells tries to explain about internet serving as an Ágora for Social and Grassroots Movements state theirs voices.