Slack News Feed - Get the top posts from every Slack chat you're in.
Slinky - Your slack links — organized!
Merrier - Turn your worries into a fun game! 💪
Tettra - Tettra is a company wiki that helps teams manage and share organizational knowledge.
Obie.ai - Access knowledge quicker without leaving Slack
Kifi for Slack - Get links messaged on Slack in Google Search results