45 Slack Hacks to Help You Say Goodbye to Email | PCMag.com

45 Slack Hacks to Help You Say Goodbye to Email | PCMag.comhttps://www.pcmag.com/feature/342246/45-slack-hacks-to-help-you-say-goodbye-to-email?utm_source=email&utm_campaign=whatsnewnow&utm_medium=titleFrom 2012 to Feb. 2017, the service has moved from 17,000 users to 5 million. That’s especially amazing since it started out as the messaging system inside a video game that didn’t get off the ground.