Zabbix - Track, record, alert and visualize performance and availability of IT resources
Buy For Life - Find the most durable and sustainable products in the world
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.
Waste Not - Open-source database of sustainable suppliers
Prometheus - An open-source systems monitoring and alerting toolkit.
Ethical Resources - Huge repository of ethical alternatives to mainstream stuff