Spinym - Ask questions anonymously
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.
Startups Anonymous - Anonymously ask questions and share stories. AA for Startups
Retroly - A fun simple tool for agile retrospectives
Wisdo - Learn from people who’ve been there
Zabbix - Track, record, alert and visualize performance and availability of IT resources