Img.vision - Image hosting & video hosting for eCommerce sellers
Savelist - Found products you want but not ready to buy?
UploadHouse - Thumbnail and resize your photos and images
Camelcamelcamel - Easily monitor Amazon product prices and get alerts when they drop.
ImageVenue - ImageVenue is a great online hosting service that allows uploading pictures for showing creative works with a simple-to-use technique.
LoveSales - Find and save products you love, get alerted when they go on sale.