Textbook rentals, etexts, etc

Recently, I wrote an article on getting textbooks for free as e-textbooks or as online textbooks.  (See the article “Free Digital Textbooks, Audio and Video for School and Continuing Education.”) In addition to the free, open source and discounted educational texts and materials for which I provided a list of links in that article, I’d like to recommend you take a look at http://www.chegg.com/ for very reasonable textbook rentals. They’re the least expensive I’ve seen. (No, I do not have any relationship with the organization.)