©IDG Communications, Inc. Photo contributed by Matthew Mikaelian.
In 2010, Twitter became a truly global phenomenon with 25 billion tweets, some of them quite powerful. But most of its growth came form overseas. If you look at a comScore chart of U.S. visitors to Twitter.com (see above), it looks like Twitter’s growth in the U.S. is stalling. In November, Twitter.com drew an estimated 24 million unique visitors, down from 25.1 million in October. Unique visitors are still up 24 percent from a year ago, but there has been zero growth since July.
Globally, however, Twitter.com attracted an estimated 104.6 million visitors in October (the month with the most recent data), up 79.4 percent from the year before and still growing at a steady clip month-over-month. These numbers are not the same as total users, which Twitter counts at 175 million (not all users go to Twitter.com, many use desktop or mobile clients, but the comScore numbers are a good proxy for Twitter’s overall health). Another way to look at it is in the year that Twitter.com’s overall audience grew by 46 million people across the world, only about 6 million of those new visitors came from the U.S.