Zabbix - Track, record, alert and visualize performance and availability of IT resources
Xmind - Xmind is a brainstorming and mind mapping application.
Datadog - See metrics from all of your apps, tools & services in one place with Datadog's cloud monitoring as a service solution. Try it for free.
MindMeister - Create, share and collaboratively work on mind maps with MindMeister, the leading online mind mapping software. Includes apps for iPhone, iPad and Android.
Prometheus - An open-source systems monitoring and alerting toolkit.
Coggle - Coggle is a simple, beautiful, powerful way of structuring information.