What a neat idea! If you have a Flickr account, QOOP will take the pictures of the sets you’re interested in and print them into a hardcopy, bound book for you. You can choose whether you want thumbnails, one, two or four pictures per page and the price is based on how many pages you’re going to end up with.
I’ve got another large batch of pictures to upload one weekend, but once I’ve done that I’ll be very tempted to do this. After all, for the 200 odd pics I have right now, it would only cost me $18 to have a permanent hardcopy of all those pictures.