TLD List - Compare Prices of All Top-Level Domains
NameMing - Get smart domain name suggestions using synonyms, suffixes, prefixes, short url, new gtlds to find the perfect domain name. Generate ideas for social user names and check availability for free!
Tldes - Comparison of domain prices of 86 registrars. Data is updated every 4 hours.
NameBounce - NameBounce is a powerful domain name and business name generator. Using our advanced search algorithms, you can routinely uncover domain names that would be worth $2,000 or more on a resale site.
Domcomp - No-nonsense domain price comparisons, updated daily
NameQL - Fast and friendly way to find a usable name for your idea, app or business