On Saturday, Amazon started e-mailing its Kindle customers, alerting them to a possible credit coming their way courtesy of Hachette, Harper Collins, and Simon & Schuster. The three publishers were pulled into an antitrust suit in April by the Department of Justice, along with two other e-book publishers (Penguin and Macmillan) and Apple, as part of a massive antitrust case that started after the EU began investigating e-book prices. 16 states filed their own antitrust suits against the publishers and Apple as well. Read the full story at ARS Technica.