Must-Read for Slack - Build controllable must-read lists for your team in Slack.
Tettra - Tettra is a company wiki that helps teams manage and share organizational knowledge.
Short - The reading list for busy people
Obie.ai - Access knowledge quicker without leaving Slack
Votum for Slack - Crowdsourced lists with upvotes, inside Slack
Lurchr - Saves all your Slack links, so you can focus on work