Check this site out, there is a sketchbook project that has a couple thousand books traveling around the country... I find that sketchbooks are an awesome way of getting ideas out without, the fear of the outside world. They are un-inhibited little makings. Can't wait to see this exhibit!!!
If you are looking for another interesting exhibit there is a yearly one at the museum for women in the arts in Washington D.C. every year that features handmade books, and book art. I have gone a couple of times and it is worth it every time. I leave with inspiration.
...will take photos of some of my own pages and post them soon....