Recently we did a project with Worldreader to visualize their global impact. Here is an animated globe showing readers using Worldreader mobile, based on WebGL Globe by the Google Data Arts Team. (Best viewed in Google Chrome.)
We were fascinated to see the amazing adoption around the world, and especially growth in India. Way to go Worldreader! 2.2M readers globally via phones and e-readers... on the way to 3M. Wow!