It’s called eReaderiQ, and it tracks titles on Kindle. If you want, it’ll notify you when a title you’re interested in drops in price. I did an EgoSearch, naturally, and found it fascinating to see all my titles listed, with price reductions chronicled wherever they applied. (I was also puzzled to note, among my titles, Block by Block: The Post Register Looks at the Neighborhoods of Idaho Falls. I don’t know that I want it, but I have to admit it seems quite reasonable at $2.99.)
Even without Idaho Falls—or another intriguing eVolume about Knitting Block by Block, which I can only suppose is about tying those Idaho neighborhoods together—I’ve got a whole lot of titles listed.
Collect them all! Win valuable prizes!