SpiderOak - SpiderOak makes it possible for you to privately store, sync, share & access your data from everywhere.
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.
Duplicati - Free backup software to store backups online with strong encryption. Works with FTP, SSH, WebDAV, OneDrive, Amazon S3, Google Drive and many others.
StatusCake - Website Uptime Monitoring & Alerts – Free Unlimited Downtime Monitoring
CrashPlan - CrashPlan for Small Business backup software offers the best way to back up and store business & enterprise data securely - offsite, onsite & online in the Cloud.
Better Uptime - We call you when your website goes down