Slack News Feed - Get the top posts from every Slack chat you're in.
Tettra - Tettra is a company wiki that helps teams manage and share organizational knowledge.
Slinky - Your slack links — organized!
OneBar - AI-powered Q&A knowledge base for Slack teams
Memonia - Automatic knowledge discovery and sharing for Slack
Kifi for Slack - Get links messaged on Slack in Google Search results