Zabbix - Track, record, alert and visualize performance and availability of IT resources
Xmind - Xmind is a brainstorming and mind mapping application.
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.
MindMeister - Create, share and collaboratively work on mind maps with MindMeister, the leading online mind mapping software. Includes apps for iPhone, iPad and Android.
Munin - PnP networked resource monitoring tool that can help to answer the what just happened to kill our performance
FeatureMap - FeatureMap story mapping, simple and effective realtime collaboration and collective intelligence tool.