Latin America is a sending region of talents, or brain drain, which can be reverted if governments apply some policies to make these talents return such as the network formation and the emergence of virtual scientific communities which can open new opportunities for the strengthening of scientific communities in the sending countries and the possibilities of an academic career. This research analyzes the phenomenon of brain drain in Latin America through the Migration Systems and Networks theory or Social Network theory and presents a case study which consists in the analysis made of the data obtained from a survey done to Latin American high skilled people living in different countries than their countries of origin. The professionals surveyed and the author do some recommendations to may revert this phenomenon in the region.