Instant Domain Search - Search domain names instantly by showing results as you type.
Domcomp - No-nonsense domain price comparisons, updated daily
NameBounce - NameBounce is an intelligent domain name and business name generator. Discover hundreds of new business name ideas with available domains, all for free!
Domainr - Domainr
Panabee - Best way to search domain names, esp for apps and startups
namegrep - Domain name search with regular expressions and curated sets