Zabbix - Track, record, alert and visualize performance and availability of IT resources
Argus - Collections management for museums & galleries
NetVizura NetFlow Analyzer - NetFlow Analyzer is a solution for bandwidth monitoring and traffic analysis. It helps with traffic investigation, analysis and reporting
RemoteRetro - A tool for having agile retrospective meetings remotely! RemoteRetro makes retros easier and more effective, even when your colleagues are in different locations.
Wireshark - Wireshark is a network protocol analyzer for Unix and Windows. It lets you capture and interactively browse the traffic running on a computer network.
Meow Playground - Imagine Club Penguin with cats!