M/Monit - Monit is a free open source utility for managing and monitoring, processes, files, directories and filesystems on a UNIX system. Monit conducts automatic maintenance and repair and can execute meaningful causal actions in error situations.

Kaapi - Build happy, high-performing remote teams

Retroly - A fun simple tool for agile retrospectives

Qualaroo for Slack - Get customer feedback in real time on your Slack channel

Zabbix - Track, record, alert and visualize performance and availability of IT resources

Startups Anonymous - Anonymously ask questions and share stories. AA for Startups