I love bookstores. Not libraries so much but bookstores. Bookstores, Target and Costco are my anthropological snapshot into the collective pop-culture zeitgeist.
My current take-a-way is that the remix culture is about to go mainstream. Some would argue it is with works like Pride and Prejudice and Zombies but the remixing mashups are spreading like a zombie virus, it's jumping to other steampunk/horror/scifi themes and will soon jump beyond the classics. They'll largely stay based on public domain books for obvious reasons but this will rapidly diversify beyond niche fiction like swine-flu jumping from pigs to humans.
Also watch out for Frankenstien. Koontz has been rigging on this for a while but the Frankenstien as the ultimate mashup will become the new zombie.