Launching Next has discovered 4 books online startups.
Books Online - New, Rare & Used Books - Movies & Music - Alibris Marketplace
Find what you want: new and used books, used textbooks, rare, out-of-print books, plus music, and movies from independent sellers worldwide.
LibraryThing Catalog your books online
LibraryThing catalogs your books online, easily, quickly and for free.
Books, Textbooks, eBooks and eReaders at Waterstones.com
Save on books and eBooks online with FREE UK Delivery at Waterstones.com. Choose from fiction, textbooks, children's books and many other genres in paperback, hardback or eBook format.
Bartleby.com: Great Books Online -- Quotes, Poems, Novels, Classics and hundreds more
Bartleby.com publishes thousands of free online classics of reference, literature and nonfiction