Facebook CEO Mark Zuckerberg bought Instagram swiftly over a weekend, seemingly on a whim. But it has proven to be a wise investment. According to ComScore, Instagram accounts for one in five of the monthly active mobile users Facebook now controls. (Note: These numbers do not take into account duplication between people who use both Facebook and Instagram.)
Follow the Chart Of The Day on Twitter: @chartoftheday
Business Insider Emails & Alerts
Site highlights each day to your inbox.