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Slack is a collaborative tool for document sharing and communication.

You can learn more about what Slack is here: https://slack.com/is

IRC on the web with tons of work-relevant integrations. And an easy API, emojis, searchable history, etc. It's great.

It's a HipChat clone.

Except it's 10x better than hipchat in almost every way. Price, funcationality, interop, apis, permissions, etc...

What's HipChat?