PTIIK Organization of Open source, better known by the name "POROS" is an Open Source organizations that are in Brawijaya University, as a place to gathered, share information, and learn for Linux users at Brawijaya University. Our members are mostly composed of students of the "Information Technology and Computer Science Program" at the Brawijaya University. In general we have a variety of activities such as workshops, seminars, gatherings, and others. One of our activities was celebrate software freedom day, the event will be held on => 20 September: Gathering; 22, 23, and 24: Open Source Workshop; in the Faculty of Information Technology and Computer Science at the Brawijaya University; http://poros.ub.ac.id