Americans love a good bargain -- especially, when it's a twofer. Barnes and Noble, arguably the only real competitor to Amazon's Kindle juggernaut, has just announced a promotion to get as many of its Nook readers into consumers' hands as possible. Starting March 24th and running until the end of the month, consumers that purchase the Nook HD+ online, in-store or at select big box retailers will also be given a free
