Two bundles per month certainly seems ambitious for a company that has only offered a handful of book flash sales in the past, but there are already conversations in progress with indie book publishers, comic book publishers and even a few of the "Big 5" (Penguin Random House, HarperCollins, Simon and Schuster, etc). In fact, there are already enough bundles lined up to carry Humble through September. And you can expect a healthy mix of formats in there from straight sci-fi ebook bundles and super hero comics collections, to publisher-themed bundles of audio and text.

While there are no immediate plans to bring ebooks to the Humble Store, Kelley Allen (director of eBooks), said that it was a distinct possibility. It's easy to see why the company would choose ebooks to focus on next. It's an easy to distribute media with a wealth of independent players looking to boost their exposure. It probably doesn't hurt that the highest average prices for Humble Bundle have been for its ebook collections, rather than its video games. Next we can only imagine that Humble will begin working with indie movie makers and musicians as it continues to build a rather unconventional media empire.