Jiffy Reader - Jiffy Reader is a browser extension that allows you to read any website faster.
Dialog Messenger - handy and feature-rich enterprise multi-device messenger available for server or cloud – Slack-like, but not Slack-limited
Short - The reading list for busy people
Ripcord - A desktop chat client for Discord and Slack
Votum for Slack - Crowdsourced lists with upvotes, inside Slack
Ziggs - Smoothly Share Content Between Devices!