Both readers and writers are always on the lookout for sites advertising discounted books. Readers, because everyone likes to buy cheap books and what better way to discover a new author. And writers, because they are always looking for sites to advertise their book sales.
Here are some sites to check out.
E-reader News Today (ENT)
Pixels of Ink
Indie Author Land
Kindle Books And Tips
Most of these sites have Facebook pages you can "like" to get updates or signup pages that will email you the latest deals. Enjoy!