Mashup, a musical genre popularized at the beginning of the XXI century, illustrates how the democratization of access to the Internet as well as to software downloads and to digital music publishing brought the listener/user to the role of new methods of music composition. With the advent of programs such as Napster and other MP3 file sharing networks, citizens had access to a wide range of tools, reconfiguring the notion of music production, and also bringing up other social interaction environments. Mashup, one of the main aesthetic fields in which these ways of creating became clear, consists of excerpts chosen from two or more songs which are recombined, originating a third one. Thenceforth other means of appropriation and also of making use of cultural goods have been established, moving senses of authorship, originality, copy and artistic production. Thus these available technologies allow the emergence of artists who create using someone else s work, recombining these creations to raise other kind of discourses. It is from the mashups that it is aimed to understand one generation that is developed in new ways of relationships between each other as much as of enjoying cultural goods produced and spread out on the Internet.