Backblaze - Backblaze's remote backup automatically backs up your data to our secure datacenter.
MailStore - MailStore Home - A 100% free single-private-user desktop solution
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.
Gmvault - Backup the emails in your Gmail account.
ManageWP - ManageWP is a service for bloggers, site owners and web based companies helping them manage multiple WordPress sites from one dashboard.
Mail Backup X - Your one stop mail backup and archiving tool for Mac.