Barnes & Noble and Nook have a one-free ebook with purchase promotion that takes modest advantage of some of the discounting freedom available to retailers under Agency Lite (though a number of the titles on offer are from publishers who sell ebooks wholesale anyway). The program focuses on selling ebooks from BN stores–the only place the offer is valid–and giving ebooks as gifts. The idea is that you buy one of the designated 20 ebooks for yourself, and then you provide an email address (or get a gift receipt with a code) to send another of those 20 titles to […]