Tettra - Tettra is a company wiki that helps teams manage and share organizational knowledge.
OneBar - AI-powered Q&A knowledge base for Slack teams
Linkpack - Save, read and share your links
Pocket - When you find something you want to view later, put it in Pocket.
Slack It - A bookmarklet to share links in Slack with one click
Obie.ai - Access knowledge quicker without leaving Slack