Gadgets Mall
Camelcamelcamel - Easily monitor Amazon product prices and get alerts when they drop.
Healcomputer - E-commerce technology site + computer related articles + product reviews.
GlassIt.co - Find discounts, without invasion of your privacy. Download Glass It Price Tracker mobile app or browser extension 🇺🇸
Awesome Stuff To Buy - Huge list of awesome stuff to buy online, if you're looking for cool things to buy this is for you, including gadgets and unique products from sites like Amazon.
Pricy - Amazon price watch
DiscoverGeek - A search engine and blog for pop-culture and geek merchandise.