Tettra - Tettra is a company wiki that helps teams manage and share organizational knowledge.
Obie.ai - Access knowledge quicker without leaving Slack
Linkpack - Save, read and share your links
Slinky - Your slack links — organized!
Pocket - When you find something you want to view later, put it in Pocket.
Lurchr - Saves all your Slack links, so you can focus on work