BrandHunt V2 - Search/track domain & social media handles in real time.
Domainz.io - Premium domains, for not so premium prices
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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!
Domain Digger - Full Open-Source Toolkit for Next-Level Domain Analysis
SafeSocial - Make the Internet a better place