There's already been some lively debate about Amazon offering full-text searching for a good chunk of its books. My personal opinion is that it's just going to wind up favoring big publishers over small ones because they are going to be more likely to offer these incentives to Amazon [as well as to be well-represented there to begin with, my small-press title doesn't even have a snappy-looking book cover shot to accompany it.] They are also more over a barrel in terms of ceding to Amazon's wishes to make this "feature" available. Of course the addition of full-text searching makes their already not-so-great search work more poorly, but then again I never did use Amazon for anything except known item searches to track down ISBNs.