It’s hard to believe that Twitter is over seven years old this year. Although still in its infancy years, the micro blogging social media site now has an estimated 500 million users around the world who have sent an estimated 170 billion tweets to-date. Some other interesting statistics* on Twitter can be found on the following infographic which was compiled and produced by the social media marketing company – Wishpond
* Some caveats: Twitter has more than 500 million registered profiles, but about half that many active users (as the infographic goes on to say, but just to be clear). Equally, the U.S. has the most active users (not China). The cost of a Promoted Trend varies by country (it’s based on maximum audience size).