The New York Times:

The government’s decision to pursue major publishers on antitrust charges has put the Internet retailer Amazon in a powerful position: the nation’s largest bookseller may now get to decide how much an e-book will cost, and the book world is quaking over the potential consequences.Amazon, which already controls about 60 percent of the e-book market, can take a loss on every book it sells to gain market share for its Kindle devices. When it has enough competitive advantage, it can dictate its own terms, something publishers say is beginning to happen.

This is a story with a lot of different angles and repercussions depending on your point of view.