UPDATE: Searching inside the books
I discovered today that AN ECHO IN THE BONE is already searchable through Amazon's "search inside this book" function. I was delighted to see the search available so soon after the book came out, since we had to wait three years to get a searchable version of ABOSAA.
For your reference, here is the complete list of Diana Gabaldon's books in searchable format, available on Amazon.com:
AN ECHO IN THE BONE (Added 9/25/2009)
And if you haven't yet finished ECHO, I'd recommend against using the "Surprise Me" function to go to a random page. You might stumble upon something that you really aren't meant to see yet!