Domainz.io - Premium domains, for not so premium prices
Gitify - GitHub Notifications on your desktop.
DomainWatch - Domain Monitoring Made Easy
GitPigeon - GitHub notifications delivered to your Mac
dofo.com - Domain search platform Dofo.com gathers all registered (350 million) domains of the world in a single place. Dofo also brings together all the domain names that are on sale, provides useful features, all completely free.
Neat.run - Neat puts SaaS notifications in your menu bar. Streamline your code review and ship with ease. Preview, triage, and jump to issues in one click or keystroke.