VISUAL REVOLUTION OF THE VANISHING OF ETHAN CARTER October 8, 2016 http://www.theastronauts.com/2014/03/visual-revolution-vanishing-ethan-carter/
An Open Valve: How a Modding Community Shaped the Future of Virtual Reality October 8, 2016 http://makezine.com/2016/07/13/open-valve-modding-community-shaped-future-virtual-reality/
