Amazon reached an agreement with Penguin over the pricing of electronic books on the Kindle e-reader. Penguin is a major book publisher and their commitment was vital  for the Kindle's success.

Penguin has not been responding to inquiries around the agreement; and the terms have not been publicly disclosed.

The two have been arguing over  the terms of the agreements over digital book prices. Penguin, founded in Seattle Washington but owned by Pearson PLC from Britain, stopped supplying Amazon w...