Domainz.io - Premium domains, for not so premium prices
Flow - Stop managing projects from your inbox.
Newsy - Monetize your un-used domains and turn them into your own content aggregator with 0 code!
Rocket.Chat - Rocket.Chat is a Web Chat Server, developed in JavaScript, using the Meteor fullstack framework.
DomainWatch - Domain Monitoring Made Easy
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.