One significant work was the founding of the Creative Commons in 2001, whose licenses provide an alternative to traditional "all right reserved" copyright schem

One significant work was the founding of the Creative Commons in 2001, whose licenses provide an alternative to traditional "all right reserved" copyright schemes, now applied to hundreds of millions of works. http://en.wikipedia.org/wiki/Creative_Commons http://en.wikipedia.org/wiki/Creative_Commons http://creativecommons.org/licenses/ http://creativecommons.org/licenses/