200 Million Tweets Posted Each Day, Twitter Announces

of its staggering growth, Twitter announced it is now experiencing 200 million tweets posted each day, up from just two million a day n 2009.

the statistic, the micro-blogging service

: “Every day, the world writes the equivalent of a 10 million-page book in tweets or 8,163 copies of Leo Tolstoy's War and Peace.”

would take more than 31 years and stacking this many copies of War and Peace would reach the height of about 1,470 feet, nearly the ground-to-roof height of Taiwan's Taipei 101, the second tallest building in the world,” Twitter continued.

also published a retrospective of some of the trending topics for the first half of this year, including swine flu, Egyptian president Mubarak, #prayforjapan, Rebecca Black and the ubiquitous Justin Bieber.