Keepa - Price history charts and the option to be alerted on price drops for all Amazon sites.
WishSimply - Wishsimply is a easy-to-use online and mobile service to manage and share your wish lists.
Camelcamelcamel - Easily monitor Amazon product prices and get alerts when they drop.
PriceGrabber - Get the lowest prices on computers, electronics, furniture, cameras, clothes and more.
Shopping.com - Shopping.com is a leading price comparison site that allows you shop online for the best deals and lowest prices. You can read unbiased product reviews and compare prices online. Online shopping has never been as easy!
WishMindr - WishMindr is a free online service that allows users to create gift wishlists for birthdays...