Tarsnap!

Online backup for $5 month unlimited space. Backblaze backup encrypts and uploads all your data – no questions asked. No picking files. No digging through folders. Your data is backed up online to our datacenters, so nothing can touch it. Restore from the web or get a DVD or USB drive sent via FedEx. Files change and Backblaze backs them up. By default, Backblaze simply backs up all the time so you dont have to remember. But if you wish, you can schedule Backblaze to backup at a convenient time or only when you click "Backup Now". Unlike Carbonite, Backblaze also backs up external USB and Firewire drives. »

Duplicati is the only portable backup program, able to send backups in encrypted form to another computer or SkyDrive using one of several methods (WebDAV, FTP, SFTP/SCP/SSH, Amazon S3, Rackspace CloudFiles, USB disk, Windows network share). Time scheduler e.g. for auto-backups every 3rd Monday on 10 a.m.German, Danish, English, French, Portugese. Can also be startet from command-line. Support for snapshots via VSS and LVM: Backup of open files. Duplicati is a rewrite of Duplicity/ftplicity, written for Windows (in managed C# .NET). It also runs on Linux using the Mono framework.The lastest portable version in all 5 languages can be downloaded as a zip file from https://github.com/duplicati/duplicati/releases »

SpiderOak provides an easy, secure and consolidated online backup, storage, access, sharing & sync tool for Windows, Mac OS X, and Linux (Ubuntu, Debian & Fedora). SpiderOak offers a different approach to online backup, synchronization, and sharing. This difference is not just measured in our zero-knowledge privacy policy - the first one ever employed in this setting - but also in our flexible design in handling data from all platforms (Mac, Windows, Linux) and locations (external drives, network volumes, USB keys) in one centralized account. »

CrashPlan lets you automatically back up your hard drive to another computer. The program offers secure cloud storage, in addition to local backups, and continuous, minute-by-minute backup. All backed-up files are encrypted.

Files on Yandex.Disk won't get lost if your phone or computer breaks. You'll have enough storage space for your most precious photos and important documents.

Minimalist Drag & drop file sharing JS applicationDrag, drop and share

Online backup for $5 month unlimited space. Backblaze backup encrypts and uploads all your data – no questions asked. No picking files. No digging through folders. Your data is backed up online to our datacenters, so nothing can touch it. Restore from the web or get a DVD or USB drive sent via FedEx. Files change and Backblaze backs them up. By default, Backblaze simply backs up all the time so you dont have to remember. But if you wish, you can schedule Backblaze to backup at a convenient time or only when you click "Backup Now". Unlike Carbonite, Backblaze also backs up external USB and Firewire drives. »

Freehold - An open, secure, and lightweight platform for your files and data.

CmisSync synchronizes files to/from any enterprise file server.It looks very much like Dropbox, but synchronizes with an existing file server instead of synchronizing with Dropbox's server.Can synchronize with Alfresco, Documentum, FileNet, SharePoint, Nuxeo, NemakiWare, eXo Platform, and any other CMIS-compliant server. Not cloud-based: CmisSync can work on local networks without Internet.

Mozy is an online backup service that offers a set-it-and-forget-it solution for backing up all of the important files on your computer. With MozyPro, there is no extra hardware to buy, no setup fees, and with our automatic backups, no additional management required to oversee it all.

ASUS WebStorage offers online storage with auto data backup for nearly 3 computers, auto data synchronization, and data sharing amongst others.