Pingdom - With website monitoring from Pingdom you will be the first to know when your website is down. No installation required. 30-day free trial.
Anturis - Anturis offers hosted server monitoring software (SaaS) for both Windows and Linux.
UptimeRobot - Free Website Uptime Monitoring
Zohno Z-Term - The Easy-to-Use Active Directory User Termination Tool
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.
Zohno Z-Hire - The Easy-to-Use Active Directory User Creation Tool