BrandHunt V2 - Search/track domain & social media handles in real time.
ZEIT - The easiest way to deploy websites.
Lean Domain Search - Find a Great Domain Name w/ twitter handle availability
Domainz.io - Premium domains, for not so premium prices
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!
Undeveloped - Domains you never thought were available