Instagram Passes 100 Million Monthly Active Users
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Instagram announced that it now has 100 million active monthly users, far behind Facebook's 500+ million monthly users, but an impressive feat nonetheless. The photo sharing app reached the 100-million user milestone just two and a half years after its 2010. Instagram has managed to gain ground at a much faster rate than Twitter, which hit the 200-million user mark at the end of last year after six years. Instagram's growth of 11.11% from 90 million users in January quells reports that the photo service was bleeding users following terms of service changes.

What Else You Need To Know

  • Facebook bought Instagram for $1 billion in cash and stock in April 2010.
  • In December 2012, Instagram announced plans to share users' photos with advertisers without notice or compensation, but was forced to revert to the originally terms of service following a mass outrage.
  • Originally an app exclusive for Apple mobile devices, Instagram enables users to take a photo, apply a digital filter, and then share the photo to users of the app, as well as other social networking services.

Other sources

Instagram’s rapid growth curve must give Twitter concern, and perhaps a hint of regret, ever since losing out to Facebook on buying the photo sharing service. - Mike Isaac, All Things Digital  
The milestone suggests that another 10 million mobile photographers got hooked on square-shaped photography in about five weeks, and it implies that the Facebook-owned company isn't about to slow down just yet. - Jon Fingas, Engadget  
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