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This article brings reflections about the role that media plays towards the frontier culture and identity constructions, considering the differentiation and approximation regarding Brazilian national frontier spaces with its South American neighbors. Besides analyzing the local communication media, the paper also is based on the local voices, which reveals that the same media becomes a participant in the Latin America integration process and in the symbolic construction of the frontier phenomena and the frontier person. [ABSTRACT FROM AUTHOR]

This paper focuses on identifying and discussing some of the information diffusion strategies used by Brazilian social actors in Twitter based on social capital perceptions apprehended in the tool. It is started discussing how Twitter can be perceived as a social network site (Boyd and Ellison, 2007) and how, based on this perception, it can be understood as a favorable environment for information diffusion between actors who belong to this network. In order to discuss these questions, this study is based on a survey ansered by 903 Brazilian twitters, as well as a content analysis of 622 random Brazilian tweets. The results point towards a possible relation between Twitter appropriation, information diffusion strategies and the perception actors have of the profits they will earn based on bridging social capital (Putnam, 2000; Ellison et al., 2007). [ABSTRACT FROM AUTHOR]