"Twitter do not release official numbers on this, and user IDs are no longer related to the number of users on Twitter. Wikipedia says that Jeremiah Owyang of Forrester Research estimated that Twitter had 4-5 million users in November 2008."@en . "Twitter do not release official numbers on this, and user IDs are no longer related to the number of users on Twitter. Wikipedia says that Jeremiah Owyang of Forrester Research estimated that Twitter had 4-5 million users in November 2008."@en . . "How many users does Twitter have"@en . .