Facebook’s first high-profile acquisition is chugging along: Instagram said a blog post Tuesday that it’s surpassed 200 million monthly active users, up from 100 million just one year ago. According to the post, 50 million of those users were acquired in the last six months, and now roughly 65 percent of the user base is outside of the United States. In an email to Gigaom, the company disclosed that users share roughly 60 million photos per day, and 20 billion photos to date. The user base growth is a good sign, as Instagram continues to pursue monetization opportunities and ad partnerships.

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