StatusOk (Open source) - Get notified through Slack/email when your website is down
Slack Jira Integration - Easily keep issues moving right from Slack
Troops Slack Sales Gong - The most customizable Salesforce Gong in Slack
Sortd for Slack - Get Trello-style project boards right in your Slack!
UXPin + Slack - Keep tabs on design projects in Slack
Actions from Slack - Turn Slack messages into tickets, issues, tasks, and more.