This Black Friday weekend, save big on e-readers at {store:barnes-noble}. You can get the Nook Simple Touch for just $39 (retail $79), making it easy to give the gift of e-books at an affordable cost. The price of the Nook HD will be slashed too, with the 8GB model going for just $79 (retail $129) and an upgraded 16GB version for $99 (retail $149). This sale will only last through Sunday so take advantage while you can.