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Twitter has 140 million users, 400 million tweets
The good: Pfffrrshhht sounds the party popper. Twitter turned six this year after co-founder Jack Dorsey's inaugural tweet. In the announcement, the microblogging site said it had 140 million active users per day sending more than 340 million tweets per day. Sure, it's not much compared to Facebook's one billion active monthly users, but for the social network underdog -- it certainly isn't bad.
A few weeks later, however, Twitter said it hit the 400 million tweets per day milestone, mostly from mobile devices. Describing Twitter's mobile advertising platform as "doing delightfully well" by Twitter chief executive Dick Costolo, he added that the firm is still not considering an initial public offering on the markets any time soon.