(Via kung fu grippe.)
The EFF has drawn up a comprehensive chart comparing privacy issues of Google Books, Amazon Kindle, B&N Nook, Sony Reader, and FBReader.
In other words, your Kindle will periodically send information about you to Amazon. But exactly what information is sent? Amazon’s wording — “information related to the content on your Device and your use of it” — reads so broadly that it appears to allow Amazon to track all content that users put on the device, regardless of whether that content is purchased from Amazon. Some security researchers have indicated that the Kindle may even be tracking its users’ GPS locations. Is this the future of reading?
An E-Book Buyer’s Guide to Privacy | Electronic Frontier Foundation.