http://mobminresources.org/story.php?title=whatsapp-has-600-million-users-are-companies-using-this-are-there-corporative-chats-mobile-world-capital-barcelona Six hundred million people look at Whatsapp at least once a month. This was announced by Jan Koum in August, along with such impressive numbers like 700 million photos shared every day . Wed, 10 Dec 2014 04:28:05 UTC en