Camelcamelcamel - Easily monitor Amazon product prices and get alerts when they drop.
Anywish.app - Collect gift ideas for your loved ones and share your own wishlists. Add items from any online store. The perfect list maker for Christmas and other events!
Fetchee - Fetchee is a free price tracking wish list app that works with all online stores worldwide.
WishMindr - WishMindr is a free online service that allows users to create gift wishlists for birthdays...
Keepa - Price history charts and the option to be alerted on price drops for all Amazon sites.
Wishy.gift - This web app will allow you to easily create wish lists and share them with your friends and family.