中文摘要：

在Web2.0时代,图书馆应把握住社会交往站点中的微内容、自组织及去中心化、应用程序以及双向交流的特征,主动将图书馆的资源和服务延伸到用户所在的网络社区。论文介绍并分析了图书馆在社会交往站点上开展服务的实践,总结了服务的主要内容及形式,指出了实践中的图书馆应采取的措施。

英文摘要：

At Web2.0 age,the library should get hold of social networking sites（SNS）,such as the micro-content,self-organization and decentralization,applications program,and the characteristic of two-way exchange,actively extend library resources and services to the network community that users belong to.This paper introduces and analyzes practice that the library serves on SNS,summarizes the main content and form of this service,and pointes out the measure that should be adopted by libraries in practice.