That is a terrific site - what I also like is you can include your amazon e-book wishlist and they'll notify you by e-mail when/if there is a price drop.
The other primary listing I've seen for the daily KDP "slush-pile" is:
http://us.kogrid.com/
You can choose whether or not to see the book covers, but it doesn't sort out the erotica like ereaderiq - so just be forewarned if you click the covers
[Nothing against erotica, of course, but if you haven't had your morning coffee before browsing...]