Amazon - Drop down submenus detect/calculate the direction of the cursor to determine whether to keep displaying a submenu or move on
Amazon - Wish List will notify you that someone may have purchased an item on your wish list if you click-through to the item’s page.
Amazon - After completing your order, the page title changes to: “Amazon.com Thanks You”
/via Steven Scarborough
Amazon - When changing an item’s quantity in the basket to 0, a link to remove the item appears.
/via Alex Muller
Amazon - The last lines of the review text fades out with an option to show the entire review.
Amazon.com - Shows the most helpful favorable review and the most helpful critical review on top.
/via Marina Janeiko
Amazon - Adding an already added item to your wish list will push it to the top of your list.
/via Marko Prljić
Amazon - When not on the Amazon homepage, hovering over the logo will make it look like a button and show the word “homepage” under it.
/via Lior Fisher
Amazon - Changes the categories drop down on the left when you tab down to an autocomplete that is related on the right.