It took 3 years, 2 months and 1 day from the first Tweet to get to the billionth Tweet. In a given week, users send a billion Tweets. Users are now sending 140 million Tweets, on average, per day, up from 50 million Tweets sent per day, a year ago. The all-time high in terms of Tweets sent per day was 177 million sent on March 11, 2011.
In terms of Tweets per second, the all time high was 6,939 Tweets per second after midnight in Japan on New Year’s Day. This compares to the previous record of 456 Tweets per second when Michael Jackson died on June 25, 2009.
Twitter says that 572,000 accounts were created on March 12, 2011, with 460,000 new accounts per day over the last month on average. Mobile users are up 182 percent over the past year. And Twitter currently has 400 employees, up from 8 in January 2008.