The travel book is an awesome resource for shops in no matter what state you are traveling to. The only thing I suggest for sure, would be to call the shop you plan to visit before going to make sure they are still open, especially in this economy; there are a lot of shops that have closed.
Of course, not all shops are listed in this book because they may not want to pay to advertise their shop, but there are a lot in there. You could also go online, do a google search for quilt shops in "state", you should get a list of shops in that state. Good luck and have fun shopping.