The full story is here on the blog post http://blog.list.ly/2014/08/27/hybrid-content-three-reasons-its-a-hot-marketing-trend/ This has now been updated V1 has 10 x 2 Content Types As of V2 I added Text (which covers blog posts, documents and just plain text). I also added Links (or Social Content). These data types extend the model to 21 x 2 = 42 Content Types plus 7 Meta Content Types. I posted the story behind this here http://www.linkedin.com/pulse/article/20140913010208-2043474-hitchhiker-s-graphical-guide-to-the-content-galaxy-finally-proof-the-answer-is-42