There are several similar tools (slack with a twist) emerged in the last couple of years. * quill.chat Slack but more social. bought by twitter and shut down.

There are several similar tools (slack with a twist) emerged in the last couple of years. * quill.chat Slack but more social. bought by twitter and shut down. WTF? * geneva.com. Slack with a feminine touch? * twist.com. half way between email and slack?