A-Tree - An AJAX powered Amazon mashup that lets you browse Amazon in a branching tree style of organization.
Amazames - Turn browsing Amazon into games such as Blackjack and Mahjong.
Amazon Cli - Part shopping, part game. Shop Amazon in an old school style by typing in commands at a command line.
GadgetSearch.net - Add Amazon top selling lists for different product categories to your iGoogle page.
WatchThisNext.com - Drag-and-drop DVDs in to buckets, the more you do, the more precise the recommendations of what you should watch next become. When one interests you, click the â€œFind out moreâ€ button and be taken to that movie's page on Amazon.
Mobile Price Comparison
411sync.com - Access the site with your WAP enabled phone to check prices while you are out-and-about.
Amabuddy.com - Call a specified phone number, enter the UPC number, hear current prices on Amazon as well as customer reviews.
Frucall.com - Using your cell phone, you can call in and check prices against Amazon as you shop in a traditional brick-and-mortar store.
Mobsaver.com - Compare prices on Ebay and Amazon via text messaging.
SCANBUYShopper.com - Enter a products barcode on your phone and compare the price with Amazon and read reviews.
Price Changes & Comparison
Amazon On Bookmarks - Bookmark an item on Amazon and get notified of price changes.
AmazonHive - An alternative way to look up items on Amazon and provides you with numerous filters to help focus your search such as pricing.
Aytozon - Gives you a quick way to price compare Amazon and Ebay.
Basefire.com - Gives you a 30-day average price on both Ebay and Amazon for items you are looking for.
Boddit.com - Aggregates price deals from bargain hunting websites and shows you the prices on sites such as Amazon.
BooksPrice.com - Uses the Amazon API, amongst others, to let you quickly price compare books, DVDs, CDs, and games.
Hawkee.com - Enter an item, get price comparisons from numerous sites in one shot.
Kulist.com - Add Kulist to your toolbar, and while shopping, click it to get price comparisons.
Priceheat.com - A one-click price checker for Amazon. Add it to your toolbar, go to a page on Amazon, click the button to price compare.
RefundPlease.com - Enter your purchases into this site, if Amazon drops the price within 30 days, it will alert you so that you can get a refund on the difference.
RSSTalker For Amazon - Receive an RSS feed of price drops, feed it single items or an entire wishlist.
SecretPrices.com - Integrates Amazon price comparing with epinions.com info.
A-Cards - Lets you shop Amazon Japan without knowing any Japanese. Enter words in English, it searches and lets you purchase all from the same site.
ActorTracker.com - Mixes actor news and gossip with shopping via Amazon for items related to that celebrity.
AmaDig.com - A new graphical way to browse Amazon that involves folders and integration with YouTube. Works with Amazon US and Amazon Japan.
Baebo - Lets you shop Amazon, Ebay, and Yahoo while price comparing all three in a unified experience.
Buyzillion - Built on Amazon eCommerce, offers products in numerous categories from several merchants.
Campare4.us - Read reviews from multiple sites all while price comparing and shopping Amazon and Ebay at the same time.
Givzilla.com - Lets non-profit groups quickly build an Amazon storefront to let them raise funds via the Associates program.
Life2Life Virtual Store - Makes use of the Amazon and Second Life APIs to let you shop Amazon.com from within Second Life.
MiserlyMonkey.com - Mixes the Amazon shopping API with Google Maps and product databases.
OrderItOnTheWeb.com - A mashup of Amazon Web Services, Google Maps, Yahoo Local, and YouTube for video product reviews.
Simplest-Shop.com - Uses the Amazon API to create a cleaner, simpler access to the Amazon catalog.
SpendFish.com - Searches Amazon for the cheapest prices in each category on Amazon.
TicTap.com - Price compare on your computer or via SMS on your cell phone, purchase directly from the site using Amazon eCommerce.
AmazonBox - Display your wishlist, listmania lists, wedding registry, baby registry or your marketplace seller items on your website.
AmzWsh - Display your wishlist, enter your Associated ID, get paid when people buy you a gift!
My 10 Wishes - Helps kids write a letter to Santa and include 10 items they pick from pre-determined Amazon lists of kid-friendly items.
Wishpot.com - Text info to your Wishpot account about an item, it will be added to your Wishlist, and it will reply with pricing and reviews.
Your-Wishlist.com - Lets you add items to your wishlist, share them with friends, post them on sites such as your MySpace account. (via)