When I started at ThinkShout in June 2011, Responsive Web Design by Ethan Marcotte had just been released. I read an excerpt of the book, Fluid Images, on A List Apart and was intrigued. I immediately bought the book and devoured it.
At the same time, Lev Tsypin, one of the partners at ThinkShout, and I started talking about HTML5 themes in an effort to choose a new standard HTML5 Drupal theme for ThinkShout to work off of. We decided to see what HTML5 themes had momentum in the Drupal community and we tested out and reviewed many current HTML5 themes out there.