Remix culture is a term employed by Lawrence Lessig and other copyright activists to describe a society which allows and encourages derivative works.

Such a culture would be, by default, permissive of efforts to improve upon, change, integrate, or otherwise remix the work of copyright holders. Lessig presents this as a desirable ideal and argues, among other things, that the health, progress, and wealth creation of a culture is fundamentally tied to this participatory remix process.
Lessig is now using the term 'Read/write culture' to refer to broadly the same thing and 'Read only culture' to refer to a permission based culture. He has been queried as to his reliance on a binary opposite rather than a spectrum of permissions but this he explains is his way to broadcast this message to a mainstream audience.

Sampling in musicmaking is a prime example of reuse, and hip-hop culture's implicit acceptance of the practice makes it a remix culture. This term is often contrasted with permission culture. Author Ramsay Wood argues that the fables in The Panchatantra are the oldest known example of remix culture.

Also consider Culture Jamming... using popular culture against itself.


Everything Is A Remix
The blog about the web video series, "Everything is a Remix". Here's a sample:

RIP: A Remix Manifesto

The [[ófago|Manifesto Antropófago]] (Cannibal Manifesto in English) was published in 1928 by the Brazilian poet and polemicist Oswald de Andrade.
Its argument is that Brazil's history of "cannibalizing" other cultures is its greatest strength, while playing on the modernists' primitivist interest in cannibalism as an alleged tribal rite. Cannibalism becomes a way for Brazil to assert itself against European post-colonial cultural domination. The Manifesto's iconic line is "Tupi or not Tupi: that is the question." The line is simultaneously a celebration of the Tupi, who practiced certain forms of ritual cannibalism (as detailed in the 16th century writings of Andre Thevet, Hans Staden, and Jean de Lery), and a metaphorical instance of cannibalism: it eats Shakespeare.