LibraryThing is an online service to help people catalog their books easily. You can access your catalog from anywhere - even on your mobile phone. Because everyone catalogs together, LibraryThing also connects people with the same books, comes up with suggestions for what to read next, and so forth.
BMV began is next-door to the World's Biggest Bookstore. The philosophy behind BMV has always been to sell good books at low prices. It's easy to find quality books that are expensive and marginal books that are cheap. The BMV challenge has always been to find unusual and interesting books of high quality and to sell them at very reasonable prices