This document has been prepared to determine the influence of marketing 3.0 on the branding of financial institutions Trujillo. For they raised the following hypothesis where the use of marketing 3.0 has a positive influence on brand image entities Trujillo. The methodology used in this work will be by the Analytical method - Synthetic - deductive. Here we will interview people over 18 years in the district of Trujillo (315 400 inhabitants, INEI 2012) that applying our probabilistic sample we determine that we will be using the survey to 384 users between workers and clients of financial institutions in the Trujillo. Noting the emerging use of social media as a communication channel between corporations and consumers, is producing an impact on purchase intention which has not gone unnoticed by the organizations are adapting their marketing strategies and increased their presence on platf...