This article is a systematic exercise of an im-portant organizational experience of Medellín created by a group of friends embarked on the task of building an alternative media corporation since 2004 (Periferia), whose first step was the establishment of a newspaper with national distribution, but whose goal was to be the raid on the various media and com-munication processes that can actually deve-lop a communication process articulated al-ternative to social transformation, economic and political demands of Colombian society