Lurchr - Saves all your Slack links, so you can focus on work
OneBar - AI-powered Q&A knowledge base for Slack teams
Tettra - Tettra is a company wiki that helps teams manage and share organizational knowledge.
Slack It - A bookmarklet to share links in Slack with one click
Photostash - Automatically save your pictures from Slack to Gdrive
Paperbot (Reloaded) - Slack meets Pocket