UptimeRobot - Free Website Uptime Monitoring
Elevio - Learn how elevio can help bring all your support channels into one, to provide the best support possible for your users
StatusPage.io - StatusPage.io is the best way for web infrastructure, developer API, and SaaS companies to get set up with their very own status page in minutes. Integrate public metrics and allow your customers to subscribe to be updated automatically.
Lighthouse Desktop - KMS Lighthouse offers world class search technology, providing instant answers to questions to reduce time to accurate knowledge.
FreshStatus - Better status pages in 1-click, FREE FOREVER
Paldesk - Talk to visitors and customers over mutiple channels in real time. Drive all your web and social messages into one dashboard.