Domainr - Domainr is the only ICANN-accredited domain status API provider.
Lean Domain Search - Find a Great Domain Name w/ twitter handle availability
Cult of the Party Parrot - Add dozens of Party Parrot emojis to Slack
Instant Domain Search - Search domain names instantly by showing results as you type.
.TECH Domains - Domain names for the new tech revolution
NameCheckup - Find available social media username and domain for your startup, business, personal brand.