@MadewithARKit has the largest social following for cutting edge use cases of mobile augmented reality, using Apple’s AR SDK, ARKit. Followers include Mark Cuban, Marc Andreessen, Clay Bavor (VP of VR/AR @ Google), and formerly Tim Cook. Owned and operated by Springboard Media, LLC. http://www.patentlyapple.com/patently-apple/2017/07/a-twitter-site-dedicated-to-developer-experiments-made-with-arkit-is-worth-checking-out.html