Flow - Stop managing projects from your inbox.
Domainz.io - Premium domains, for not so premium prices
Rocket.Chat - Rocket.Chat is a Web Chat Server, developed in JavaScript, using the Meteor fullstack framework.
Newsy - Monetize your un-used domains and turn them into your own content aggregator with 0 code!
Zulip - Chat for distributed teams. Zulip combines the immediacy of real-time chat with an email threading model. With Zulip, you can catch up on important conversations while ignoring irrelevant ones.
DomainWatch - Domain Monitoring Made Easy