發送短信 : The emergence of social media as boundary objects in crisis response: A collective action perspective

  _____      ___     _    _     _____   __    __  
 |__  //    / _ \\  | \  / ||  |  ___|| \ \\ / // 
   / //    / //\ \\ |  \/  ||  | ||__    \ \/ //  
  / //__  |  ___  ||| .  . ||  | ||__     \  //   
 /_____|| |_||  |_|||_|\/|_||  |_____||    \//    
 `-----`  `-`   `-` `-`  `-`   `-----`      `