Tettra - Tettra is a company wiki that helps teams manage and share organizational knowledge.
Lurchr - Saves all your Slack links, so you can focus on work
OneBar - AI-powered Q&A knowledge base for Slack teams
Obie.ai - Access knowledge quicker without leaving Slack
Paperbot (Reloaded) - Slack meets Pocket
Pingpad for Slack - For Slack teams to capture knowledge, organize and act on it