ifttt - IFTTT puts the internet to work for you. Create simple connections between the products you use every day.
Dropbox - Online Sync and File Sharing
ExpanDrive - ExpanDrive is a fast network drive and browser for cloud storage.
Syncthing - Syncthing replaces proprietary sync and cloud services with something open, trustworthy and...
FileCloud - FileCloud is an enterprise file share, sync and mobile access solution.
ownCloud - ownCloud is an open source project enabling businesses to host their own cloud storage while maintaining regulatory and compliance needs.