Kindle devices appeal to many people. When everything works, they're great. But Amazon is becoming more and more finicky, both in terms of supported formats and the freedom to manage your own books.

Amazon's Kindle was first released in November 2007. This is the most popular strictly e-reader device on the market with 48 percent of 2010 sales, according to a March 2011 report from International ...

Amazon is releasing a new file format for Kindle e-books. Called Kindle Format 8, or KF8, the new format is based on HTML5 open standards, and is intended to help create the next phase of electronic ...