seen from Taiwan
seen from China
seen from United States
seen from Finland
seen from China
seen from United States
seen from Yemen
seen from United Kingdom
seen from China
seen from China
seen from Taiwan
seen from United Kingdom
seen from Lithuania
seen from Malaysia
seen from Senegal
seen from China
seen from Germany
seen from China
seen from Taiwan
seen from China
I don't think twitter ever replaces those tactics, but it is certainly a new communication channel for people to share information and organize.
Morris, T. (2014). "Black Twitter" interview. Retrieved on October 25, 2015, from http://miriamsweeney.net/2014/01/25/black-twitter-interview/
