I've used a bunch of team-based, business-oriented chatroom-style services, and Slack and Hipchat seem to be the two most popular choices for managers at this point. Maybe it's time to consider an alternative, and cloud storage giant Dropbox is giving us a pretty good reason to do so: Zulip. The funny-named client has been quietly developed by Dropbox for the last year, and now it's available as an open source tool.

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