Animista - Create beautiful CSS animations in your browser
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.
Keyframes.app - A timeline editor for CSS animations
StatusCake - Website Uptime Monitoring & Alerts – Free Unlimited Downtime Monitoring
CSS Animation Cheat Sheet - Awesome CSS3 plugin for spiffy animations
Better Uptime - We call you when your website goes down