Free culture is a growing understanding among artists and audiences that people shouldn't have to ask permission to copy, share, and use each other's work; it is also a set of practices that make this philosophy work in the real world.
Remix culture
Remix culture is a society that allows and encourages derivative works by combining or editing existing materials to produce a new product.
SGAE
“Sociedad General de Autores y Editores”, SGAE, is a private entity devoted to the defence and collective management of the intellectual property rights
Copyleft
Is the practice of offering people the right to freely distribute copies and modified versions of a work with the stipulation that the same rights be preserved in derivative works down the line.