Salesforce completes acquisition of Slack
I think both Slack and Discord are good examples of products that entered already well established niches and still succeeded.<p>Slack launched in August 2013 as a plain text chat service without voice and video calls. Skype and HipChat already existed for a decade before Slack entered the market.<p>In just seven years Slack went from being an internal team chat app to making a $28 billion exit.