Update 9 November 2010: It looks like Jungle-Search has abandoned the url “kindleIQ” in favor of the more ecumenical “ereaderIQ,” but they aren’t redirecting visitors for some reason. I’ve updated the URL below so that you can access the service, which still functions the same as I described.
So I want this book by Douglas Rushkoff called “Life Inc.: How the World Became a Corporation and How to Take It Back”. It came out in hardcover about sixteen months ago, but unfortunately Random House is pricing it at $14.30 right now.
Usually in cases like this I add the book to my Wish List, and then periodically try to remember to check back to see if the price has dropped. But that’s not a very efficient way to track Kindle prices, since I have to remember to check in, and I still might miss special sales where the price temporarily drops.
Here’s the easier way: KindleIQ.com eReaderIQ.com, a free website from Jungle-Search. Jungle-Search lets you check prices on any Amazon product, but KindleIQ eReaderIQ.com is a spin-off that focuses solely on ebook titles.
Using it is easy:
1. Find the Kindle book you want on Amazon. Copy the URL, or, under the Product Details section, copy the ASIN.

2. Go to http://www.ereaderiq.com/pricewatch/ and paste the URL or ASIN into the top field.
3. Add your email address.
4. Set the trigger discount amount (the “notification threshold”).

Be careful here! You don’t want to list the final price you’d like to see, but rather the amount the price has to drop before you’re alerted. For example, “Life Inc.” is currently $14.30 and I won’t buy it until it drops to $9.99, so I entered $4.31 as my notification threshold. If I wanted updates every time the price dropped by a dollar, I could have entered $1.00 instead.
5. Hit Submit.
So long as you always use the same email address, you’ll be able to come back to this page and see at a glance all the books you’re currently tracking:

EReaderIQ tracks the pricing for 180 days, but if the system reaches the final 30 days of a tracking period and you want it to continue monitoring the title, you can reset the timer.
(Photo: San Jose Library)
By Booksprung » Kirkus picks best teen and children’s books for 2010 November 17, 2010 - 4:05 PM
[...] store. Remember, if you want to track Kindle titles so you can wait until the price comes down, eReaderIQ.com is free and easy to [...]
By eReaderIQ now has a Kindle friendly mobile site May 10, 2011 - 1:28 PM
[...] the time, but I also sometimes find them from eReaderIQ. In the past I’ve recommended it to track the price of individual books, and it’s still great for that. But the site also lists all price drops [...]