This document discusses 10 augmented reality technologies including SpyGlass, Layar, Tagwhat, 110 Stories, SkyWalk, Word Lens, LeafSnap, Aurasma, String, and wearable displays. It notes that AR was invented in 2009-2010 and that the number of AR users is expected to grow from 5 million currently to 1 billion by 2020. The document outlines each technology and its use cases. It concludes by discussing implications of increased mobile ubiquity, game-based learning, the internet of things, gesture-based computing, sensors and displays, robotics, and teaching and learning.