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.
SideProjects - A platform to share side projects you're working on
StatusCake - Website Uptime Monitoring & Alerts – Free Unlimited Downtime Monitoring
SideProjectors - Marketplace to buy and sell side projects
Better Uptime - We call you when your website goes down
Ship Your Side Project - Make enormous progress on your side project in just 6 weeks