maintained by the Brazilian government, the website itamaraty mre portal consular provides more information on visa procedures and requirements, as well as the location and availability of Brazilian consulates throughout the word - it can be contacted via the form on this page. 

managed by the Ministério das Relações Exteriores (ministry of external relations) the Sistema de Controle e Emissão de Documentos de viagem - SCEDV (system for the control and issue of travel documents) Publishes on this page the basic application form (SOLICITAR VISTO) to obtain any type of visa, the form where to correct or modify some of the information submitted in a previous application (ATUALIZAR REQUERIMENTO), And the form where to check on the status of the visa application process (CONSULTAR SITUAÇÃO DA SOLICITAÇÃO), or the form  to re-print a visa (REIMPRIMIR RECIBO DE ENTREGA DE REQUERIMENTO - RER).  

the Polícia federal (federal police) is the body in charge of border control, and of emitting a variety of visa and naturalization related documents, and maintains a webpage accessible via this link.