The EFF has released "Who's Tracking Your Reading Habits? An E-Book Buyer's Guide to Privacy, 2012 Edition."
Here's an excerpt:
As we've done since 2009, again we've taken some of the most popular e-book platforms and combed through their privacy policies for answers to common privacy questions that users deserve to know. In many cases, these answers were frustratingly vague and long-winded. In nearly all cases, reading e-books means giving up more privacy than browsing through a physical bookstore or library, or reading a paper book in your own home. Here, we've examined the policies of Google Books, Amazon Kindle, Barnes & Noble Nook, Kobo, Sony, Overdrive, Indiebound, Internet Archive, and Adobe Content Server for answers to the following questions:
- Can they keep track of searches for books?
- Can they monitor what you're reading and how you're reading it after purchase and link that information back to you? Can they do that when the e-book is obtained elsewhere?
- What compatibility does the device have with books not purchased from an associated eBook store?
- Do they keep a record of book purchases? Can they track book purchases or acquisitions made from other sources?
- With whom can they share the information collected in non-aggregated form?
- Do they have mechanisms for customers to access, correct, or delete the information?
- Can they share information outside the company without the customer's consent?