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自由知识文化日历/1月7日
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来自维基教科书，开放世界中的开放书籍
反DRM抗议
2008年今天，索尼BMG音乐娱乐宣布成为最后一家放弃数字版权管理的主要唱片公司。
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虽然反DRM的斗争将会继续，但这标志着该运动的一项重大胜利。
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https://www.afterdawn.com/news/article.cfm/2008/01/07/sony_bmg_drops_drm_in_digital_downloads
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图书：自由知识文化日历
华夏公益教科书
反DRM抗议
