MailStore - MailStore Home - A 100% free single-private-user desktop solution
ExpanDrive - ExpanDrive is a fast network drive and browser for cloud storage.
Gmvault - Backup the emails in your Gmail account.
ifttt - IFTTT puts the internet to work for you. Create simple connections between the products you use every day.
SysTools Gmail Backup - Backup Gmail Emails, Contacts, Calendar, and Google Drive Storage File by SysTools Gmail Backup Solution
FileCloud - FileCloud is an enterprise file share, sync and mobile access solution.