Like many of us, I get my most up to date info on the internet, but I also enjoy leafing through through a good travel book at Borders or other book stores. The library travel books are often a little outdated. I rarely take a travel book with me, they are just too much to carry. I print out specific items of what I want to visit, or restaurants where I want to eat. With my Notebook along, I can always access the internet if I need more info.
Of course, my youngest son, insists on doing his research on the internet and he does come up with some very good and current information.
Here is a website with guidebooks to purchase in pdf format. Great to take with you on your Kindle. I like the fact that you can chose to purchase the entire book, or only pay for specific chapters you are interested in.