Twitter cross 10 Billion user mark

Social networking site Twitter, which has reported the 10 billionth tweet. The milestone was reported by Gigatweet, which tracks the microblogging service. The 9,999,999,999th tweet was sent by one Rafaela Marques from Brazil. However, people cannot see the 10 billionth person, who has a protected profile. It is now estimated that the next 10 billion will only take 4-5 months, with the 20 billionth tweet scheduled to appear sometime in July, the website predicted. Twitter was launched in 2006 but has not taken off fully. It has to wait till the end of 2009. In December 2009, Twitter managed 1 billion tweets in a month for the first time in its history.