As someone who is an avid reader I find the ramifications of the Google Book Settlement disturbing. If you want more information check out this post here. Now I'm not a huge fan of how Google does business to begin with (in the interest of full disclosure I do have an Android phone so I do have some interaction with Google that I find enjoyable, but the way they infringe on privacy and copyrights bothers me, that and I totally don't buy they're whole "don't be evil" mantra).
At any rate, the post covers 5 ways that the GBS will impact books, and it has some insightful comments so check it out