The vast emergence of social media with its characteristics and benefits opened doors for indiviuals and groups to connect utilizing this revolution. Social media became a huge virtual community, with highly interactive and collaborative environment among its members. Governments realized that more and more of their citizens are present over social networks, not over governments' websites. This paper takes Facebook as one of social media applications and builds a framework for measuring communication success over social networks. The model proposes that transparency, participation, collaboration and comfort will lead to communication success. Also, the model assumes that the posted topic will influence communication success. Finally, we propose indicators and metrics to measure factors proposed in the model.