We started using the Slack messaging app at SNAP Forward some time last fall and love it. It enables fast communication and collaboration in an office where we have hundreds of tasks to accomplish at any given time. While we’re not going to call it an email killer just yet, it certainly is a welcome replacement for messaging apps like Skype. The interface is clean, ad-free, and we don’t have to worry about outside solicitations because our Slack environment is closed to the outside world.
Slack is definitely our first recommendation for any office searching for collaboration tools. See their videos below for more about the messaging app or, go directly to their Youtube channel for tips on how to use the service.