社会媒体系统主要包括播放系统、标记系统和搜索系统。在系统地介绍社会媒体的相关研究基础上，讨论已实现的技术和开发中的技术，以整合为用户驱动影音媒体服务的数字图书馆系统模型。Social media system mainly includes broadcast system, tagging system and search system. Based on the systematical introduction of the relevant studies of social media, discuss the realized technology and the developing technologies,to integrate as the model of digital library system that user-driven audio-video media services.
