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.
ClipCard - ClipCard is a personal search app. We help you find the stuff that matters most: your own.
StatusCake - Website Uptime Monitoring & Alerts – Free Unlimited Downtime Monitoring
Revisions - A Mac menubar app to view all your dropbox activity
Better Uptime - We call you when your website goes down
Insync - Meet the Insync team that made it possible for users to do more with Google Drive storage on your devices.