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.
MailStore - MailStore Home - A 100% free single-private-user desktop solution
StatusCake - Website Uptime Monitoring & Alerts – Free Unlimited Downtime Monitoring
MozBackup - Backup tool for Firefox and Thunderbird
Better Uptime - We call you when your website goes down
imapsync - Console-based utility for migrating IMAP mailboxes.