20 Anecdotario / Twitter October 11, 2009 by Mariluz Congosto · Published October 11, 2009 · Last modified December 14, 2014 Arthur C. Clarke predicted Twitter
13 Twitter September 30, 2009 by Mariluz Congosto · Published September 30, 2009 · Last modified December 14, 2014 Definiendo Twitter en pocas palabras
