Identification of communities through email usage analysis

During the last decade we have witnessed the generalized use of email as a tool for communication in our society. Its use within organizations follows this general trend and a large portion of a company's internal information flow occurs in this way. Thus, monitoring its use, while preserving the anonymity of its users, is a very valuable tool to know the informal structure of an organization and to compare it with the prescribed formal structure. In particular we present a community analysis performed on the email network of the Universitat Rovira i Virgili, Tarragona, Spain.