Here's google's take on it: http://googleblog.blogspot.com/2013/02/google-creates-60m-digital-publishing.html http://googleblog.blogspot.com/2013/02/google-crea

Here's google's take on it: http://googleblog.blogspot.com/2013/02/google-creates-60m-digital-publishing.html http://googleblog.blogspot.com/2013/02/google-creates-60m-di... (And here's a smoother-loading version: https://www.readability.com/articles/q8x2ifi3?legacy_bookmarklet=1 https://www.readability.com/articles/q8x2ifi3?legacy_bookmar... )