This is How Mark Zuckerberg Celebrated Instagrams Crazy Milestone
Now that social media site Instagram has more users than Twitter, Mark Zuckerberg has found a shareable way to celebrate. The co-founder of Facebook, which bought the photo-sharing platform for 1 billion in 2012, posed for a head-scratching photo in Instagram headquarters' "gravity room" to mark the milestone. Instagram's room is not unlike every other room on earth in that, yes, it is subject to the forces of gravity. But in this room, the stuff that would normally be on the ground is attached to the wall  allowing Zuckerberg and Instagram CEO Kevin Systrom to appear to be bouncing off the funky wallpaper. Pretty cool.