Amazon.com launches Kindle textbook rentals with up to 80% off - Los Angeles Times http://news.google.com/news/url?sa=t&fd=R&usg=AFQjCNHRHftb8a-xmhDWc2n0i1REtpdy8g&url=http://latimesblogs.latimes.com/technology/2011/07/amazoncom-offering-up-to-80-discounts-on-kindle-textbook-rentals.html