HP have built an app called Snapfish which is a very sleek and clever way of making your most popular facebook photos into one lovely bound real-life book. Hit up socialpicsbook.com to see it in action. One thing I must point out, all you professional photographers out there, and all you people uploading lots of pictures of your kids, remember that these images can be shared, and thus your pictures end up in someone elses book. If you're not cool with that, don't upload to Facebook.
Snapfish: make a real HP printed book from all of your facebook photos (and some of your friends pics too)