摘要
In the web 2.0 era,Social Networking Sites(SNS)provide highly interactive platforms for individuals with the help of digital technologies and internet recently.SNS(Facebook,Instagram,Twitter,LinkedIn,WeChat,Weibo,etc.)are very popular across the globe.People use these platforms to express and share knowledge,ideas,opinions,experiences and insights.As such,SNS have become an important online channel for people to share knowledge.
作者简介
Corresponding author:SHEN Jing,Email:jshen@pku.edu.cn,ORCID:0000-0002-3214-6245
