附：知识共享（CC）版权的目的与目标Purpose and Goal Creative Commons（知识共享） hasbeen described as being at the forefront（发展前言） of the copyleft movement（版权运动）, which seeks to support the building of a richer public domainby providing an alternative to the automatic "all rights reserved" copyright,and has been dubbed "some rights reserved". David Berry and Giles Moss have credited Creative Commons withgenerating interest in the issue of intellectual property and contributing to there-thinking of the role of the "commons" in the "information age".Beyond that, Creative Commons has provided "institutional, practical andlegal support for individuals and groups wishing to experiment and communicatewith culture more freely." CreativeCommons attempts to counter what Lawrence Lessig,founder of Creative Commons, considers to be a dominant and increasinglyrestrictive permission culture. Lessig describes this as"a culture in which creators get to create only with the permission of thepowerful, or of creators from the past." Lessig maintains that modern culture is dominated by traditionalcontent distributors in order to maintain and strengthen their monopolies oncultural products such as popular music and popular cinema, and that CreativeCommons can provide alternatives to these restrictions.