Today I release "Amazon Bestsellers Viewers" ,which shows Amazon.com ranking 1 to 100 with each categories.
Amazon Bestsellers Viewer

Left side of this site is thumbnail of ranking item images, and Right side is detail of the item which focused item in left side.
Mouse operation
click means clipping the item to the bottom of this site and double click means open the Amazon item page by new window.
Keyboard operation
h/j/k/l means move forcus , Enter/v means open the Amazon item page , s means clip the item ,and c/x means show the select categories menu.
The default display mode is 10 x 10, so if you want to check more larger thumbnail images , the "2" (not ten keys) means changing display mode to 5x5 mode.
Technical Information
This site uses these libraries and APIs.