Instagram is now used by 400 million people each month
~!!~Instagram*s growth from 200 million to 300 million happened in roughly the same timespan, which means that the service is growing fast, although its growth is not necessarily accelerating// Still, it*s grown to an impressive size// Twitter is currently at 316 million monthly active users, and Pinterest just hit 100 million//
~!!~What*s particularly interesting about Instagram*s growth is that it*s happening largely outside of the US// Instagram says that 75 percent of its users live elsewhere, with recent growth coming from Europe and Asia; Brazil, Japan, and Indonesia added the most users in this past 100 million//