I recently became introduced to a book sharing site via my hubby who is working on the facebook plugin for it. The main site has nothing to do with me/hubby however (in the interest of full disclosure) :-)
It's called Bookmooch, and the premise is you post books you want to give away, and create a wishlist of books you'd like to receive. It's completely free, and the only cost to the user is your postage when sending books out. It's an international site, and some of you may know - many books that are published in the UK, other parts of Europe, and the rest of the world, never make it over here. I've compiled a nice big list of UK editions of books that I can't wait to get my hands on. Lots of books available in foreign languages too!
It works on the point system, which is quite beneficial to those of us in Canada. For example, to mooch a book you need one point, but if you send a book out anywhere other than in Canada, you get 3 points. So that's three books for the price of shipping one. Which works out cheaper than used book stores!
I couldn't find any beading books though.... :-( Most likely due to the fact that most of us don't want to part with our beading and jewelry books. I know I don't!