"reader-oriented" is the survival idea the digital library must adhere to. Digital library must start services based on readers exchanging and sharing knowledge as the starting points. So, this paper introduces the necessity and feasibility of introduction SNS into the digital library. Based on this, it explores the approaches to introduce SNS into the digital library.%“以读者为本”是数字图书馆生存和发展必须坚持的理念。数字图书馆必须以读者交流、共享知识为出发点开展各项服务。介绍了数字图书馆引入SNS理念和技术的必要性和可行性,在此基础上.探索了数字图书馆引入SNS的实现方式。
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