For many years I’ve been obsessed with creating a better chat experience that seamlessly blends project management, casual chat, and multi-faceted browsing and integrations.
A decade ago when the world still used Skype, I designed concepts that ended up looking a lot like what became Slack, and recently other concepts surfaced in the amazing multi-column browsing experience in Arc.
Here is the multi-year journey of those concepts in Dribbble:
2016 - Multi-column Agile Intranet

2015 - Chat App
2013 - Multi-column Tweetbot
2013 - Chat App v3

2013 - Chat App v2
2013 - Chat App v1 (back when it was building on Skype)