Camelcamelcamel - Easily monitor Amazon product prices and get alerts when they drop.
LoveSales - Find and save products you love, get alerted when they go on sale.
GlassIt.co - Find discounts, without invasion of your privacy. Download Glass It Price Tracker mobile app or browser extension 🇺🇸
TrackIf - Alerts you if the price of your favorite products drop
Pricy - Amazon price watch
Giftwhale - Giftwhale allows you to create personalised wish lists online.