Amazon.com now has a "Random Page" feature for the "NXT Idea Book". (This is different from the "Search Inside" feature).
On two different days of using this feature, I was able to access 35 different pages from the book. (The pages apparently change day-by-day. I don't know how many total pages are randomized).
This is a good way to see additional book excerpts online. To access the random page feature, go here and scroll down to the "Inside This Book" subheading. Then, click on the "Surprise Me" link.