[yoz-y]

After having read http://www.asymco.com/2014/04/16/innoveracy-misunderstanding... I think that people often misuse the term innovation. From my understanding Slack is innovative, precisely because it is useful. Its novelty is not in features but in the delivery. Yes IRC had all the features but it is hardly something one can recommend. Slack made the long process of setting up a server, shell/bouncer, dcc a matter of a few clicks. On top of that they provide a unique client for everybody which means that everybody sees the same thing. Throw in the integrations and you have a very compelling package. The features one by one are not new or revolutionary, but they were the first to push the whole deal out.