Independent booksellers join Barnes & Noble, Books-A-Million and Canadian chain Indigo in refusing to stock retail giant's own booksThe cold war between north American booksellers and Amazon has hotted up this week, with the booksellers joining together to announce that they will not be selling any of the titles published by the online retailer.The opening salvo was fired last week by America's biggest book chain Barnes & Noble, when it announced that it would not be stocking Amazon Publishing's books. The website publishes a large range of titles, with imprints covering everything from romance to thrillers, and major authors including Deepak Chopra and self-help guru Timothy Ferriss."Our decision is based on Amazon's continued push for exclusivity with publishers, agents and ...