Apologies if this isn't considered news, but it was news to me.
The US Navy has an Overdrive lending library available for all Active Duty and Retired Navy and Marine Corp personnel. Available books are in PDF, ePub and Kindle formats. I checked out both a Kindle book to my Kindle4PC and a epub for use on my Sony a couple of days ago and they both worked great.
Current selection totals
E-books
Fiction - 5709 books
Non-Fiction - 3621 books
Audio Books
Fiction - 14483 audio books
Non-Fiction - 6732 audio books
If interested and qualified go to
Navy Knowledge Online and create an account. Login, then go to
Reference > E-Library - Audio & EBooks and click on the Overdrive - Audiobooks, Ebooks & More section. I believe you will be prompted to create another account but after this you do not have to log in through the main NKO site.
Enjoy!