I received some lovely samples of cotton twill ribbon from book binder /artist Angela Liguori. There are two weaves available and these colors are making me crazy! She has a lovely blog and you can e-mail her if you are interested in her ribbons or anything else on her wonderful site.
I don't have this yet, but while dreaming of other book/box projects I remember this wonderful item I saw in the catalog at Paper Source. It's self adhesive bookbinding tape and I love the colors it comes in, although many are on back order. Still, must try using this sometime for something.
They also sell my favorite all time bookbinding books there, too. These are really. . .um, heady. More like the book form as art. They focus on non-adhesive book binding, which is what I was super into in college. They were hard to find for awhile, so I am glad to see them readily available.
And How To Make Books, by Ester K. Smith came to me (thanks to Potter Craft, my publisher takes good care of me!) and it's so very very cool. I read about it first over at soulemama and was so curious. It teaches wonderful book binding techniques even kids could do--and some more advanced ones too. The designs in this book (the actual book examples they feature) aren't exactly what I would make, they are for the most part artist and book binder collaborations, but the how-tos are really well described and the book design/art direction is outstanding. The davy board cover of this book with an embossing is really clever.