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.

Indie Hackers - Connect with fellow entrepreneurs, developers, and bootstrappers who are sharing the strategies and revenue numbers behind their companies.

Slack - A messaging app for teams who see through the Earth!

Elpha - The most powerful network for women in tech.

Flow - Stop managing projects from your inbox.

Makerlog - Makerlog is the dead-simple task log that helps you stay productive and ship faster.