标题: 'A Brief History of Information Gatekeepers' [打印本页] 作者: choi 时间: 4-4-2015 09:17 标题: 'A Brief History of Information Gatekeepers' Alexis Madrigal, The Fall of Facebook; The social network's future dominance is far from assured. The Atlantic, December 2015.
My comment: There is no need to read the text. View only the sidebar (at the bottom of the Web page), whose title is “A Brief History of Information Gatekeepers.”