Slack - A messaging app for teams who see through the Earth!
Matter - Create a feedback-focused culture in Slack with Matter!
9mCollab - Collaborate (efficiently) Conclude (fast) Contribute (in the knowledge base)
Kaapi - Build happy, high-performing remote teams
Mattermost - Mattermost is an open source alternative to Slack.
Spokk - Get your creations or ideas for blogs, designs, art, music, photos, YouTube videos or anything...