TLD List - Compare Prices of All Top-Level Domains
Camelcamelcamel - Easily monitor Amazon product prices and get alerts when they drop.
Tldes - Comparison of domain prices of 86 registrars. Data is updated every 4 hours.
GlassIt.co - Find discounts, without invasion of your privacy. Download Glass It Price Tracker mobile app or browser extension 🇺🇸
Domcomp - No-nonsense domain price comparisons, updated daily
Pricy - Amazon price watch