This paper introduces the developmental backgrounds, quintessence and using methods of the social bookmark service, and probes into the enlightenment and significance of the social bookmark service no university library.

Social bookmarks is a new model of information resources management.

With social bookmarks as operating data of internet users and by analyzing social bookmarks made by the users,a recommender system for the whole internet can be constructed.

0, the most prominent contribution of social annotations is that it successfully makes web users turn from being simplex information acceptors to active information promulgators and profoundly influence the information transmitting mode on the web.

Among this the most representative technique is social annotation which brings new chance to imp.

Social annotations reflect that how user understand web resources content and provide rich meta-data for Web page classification.

Application of Social Tags in the Integrated Platform of Beijing Best Courses

This model introduces the attenuation quotient of query tags to reflect their importance,simultaneously,applies random walk algorithm to the music relation graph which is built based on social tags,and then calculates the heat degree of music,the final ranked results are returned to users.

This paper briefly introduces the basic characteristics of social bookmarking and the types of social bookmarking websites which are popular on internet,and discusses its main functions in network information service.