6 Reasons Why Ads On The Kindle Don't Work

Amazon is considering advertising as a way to subsidize Kindle e-books, patent filings reveal. In theory, this means that Amazon could offer Kindle books for free or reduced prices, making up the difference in ad revenue. That could drive Kindle and book sales. Patent filings aren't direct clues about a company's plans, but let's suppose that Amazon does someday want to enter the ad market. Here's a bunch of hurdles the company will have to overcome first.