Productz.com - Crowdsourced products database

The Wirecutter - Wirecutter is a list of the best appliances, tech, and gear for the home. Reviews are based on research and hands-on testing by veteran journalists, scientists, and researchers.

Versus - Find popular alternatives to anything in a jiffy

Tech GearLab - An independent tech product rating site performing rigorous side-by-side comparative reviews

Diffen - Compare anything to find similarities and differences. Read, improve or create comparisons.

Expert Reviews - Expert Reviews is an independent product reviews website providing in-depth product information and ratings for a wide range of consumer electronics, from washing machines to smartphones.