Since its launch, Twitter has become one of the ten most visited websites on the Internet, and has been described as "the SMS of the Internet. As of March 2011, there were 140 million tweets posted daily. On December 18, 2012, Twitter announced it had surpassed 200 million monthly active users. On February 3, 2013, Twitter announced that a record 24.1 million tweets were sent the night of Super Bowl XLVII. In the past year, Twitter has made the integration of Twitter and television the centerpiece of its growth strategy and notably acquired Bluefin Labs in early February 2013 as part of that strategy.