A few months shy of this time last year, Facebook bought out Instagram for $1 billion. The purchase gave Instagram a huge publicity boost, and much more power with Facebook on its side. In the past year, Instagram added 90 million more users, bringing their active users to 130 million a month.
Can an app built around photos and 15-sec videos top Facebook's user numbers one day? Instagram's co-founder, Mike Krieger, answered the same question, and gave a less than stellar response: "I don't know — that's a good question. I think both of them are basically limitless in size, so maybe one day they'll be the same size?"
[via Fast Company]