This is a research in the field of Internet and Democracy which aims to analyze the impact of political communication in social media during election campaigns in Brazil launching a conceptual and empirical view about how politicians in campaign are using Facebook, the viral impact of their content and the digital political communication as a campaign tool in 2014 elections Therefore, the object of this research intend to observe all the publishers at eight candidates for re-election as a federal deputy for Rio de Janeiro fanpages on Facebook at 33 days. Based on qualitative and quantitative methods applied on 840 publications, collected in 8 different profiles, it s easy to observer that: a) there s no relationship between the incidence of posts and the number of interactive activities; b) There is a relation between campaign platform and activity log posts and the possibility of shares and comments c) in a contemporary electoral environment, a candidate may tend to be more efficient on the web, especially on social media to be successful in terms of votes.