HelpNDoc - What is HelpNDoc ? Easy to use yet powerful help authoring environment which can generate various documentation formats from a single source.

statuspage - A simple self-hosted status page site with an API written in Django under the BSD license.

HelpSmith - HelpSmith is a help authoring tool to create CHM HTML help files, manuals, and PDF documents.

UptimeRobot - Free Website Uptime Monitoring

Adobe RoboHelp - Adobe RoboHelp empowers organizations to deliver engaging help and policy content across mobile devices, formats, and platforms.

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.