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Metrics


         



Tweets per day
  • January 2009: more than 2 million
  • July 2009: more than 12 million
  • January 2010: more than 32 million
  • July 2010: more than 65 million
  • Today (Sept 14, 2010): more than 90 million


                                                 



         



Registered users
  • January 2009: more than 5 million
  • July 2009: more than 28 million
  • January 2010: more than 75 million
  • July 2010: more than 125 million
  • Today (Sept 14, 2010): more than 160 million