Remus provides transparent, comprehensive high availability to ordinary virtual machines running on the Xen virtual machine monitor. It does this by maintaining a completely up-to-date copy of a running VM on a backup server, which automatically activates if the primary server fails. Key features:

* The backup VM is an exact copy of the primary VM. When failure happens, it continues running on the backup host as if failure had never occurred. * The backup is completely up-to-date. Even active TCP sessions are maintained without interruption. * Protection is transparent. Existing guests can be protected without modifying them in any way.

Just drag your Folder into Jake and everything will kept in sync with all people you invite.

Jake is 100% free, open source and available for Linux, Windows and Mac OS X. We're using free technologies like Jabber and open source chat server engines.

davfs2 is a Linux file system driver that allows you to mount a WebDAV server as a local file system, like a disk drive. This way applications can access resources on a Web server without knowing anything about HTTP or WebDAV. davfs2 runs as a daemon in userspace. It uses the kernel file system coda or fuse. Most propably your Linux kernel includes at least one of this file systems. To connect to the WebDAV server it makes use of the neon library. Neon supports TLS/SSL (using OpenSSL or GnuTLS) and access via proxy server.

The SimpleCDN network is designed from the ground up for digital media streaming and delivery, and we have made jittery, buffering video a thing of the past.

What follows is a simple description of a way I use to additionally "shield" my important files (a daily "tar" I take every night through a cron job), so that even if some sectors hosting them are lost, I still end up salvaging everything.

s3fs is a fuse filesystem that allows you to mount an Amazon S3 bucket as a local filesystem. It stores files natively and transparently in S3 (i.e., you can use other programs to access the same files). Maximum file size=5G.

Jungle Disk Desktop Edition lets you store files and automatically backup data easily and securely to Amazon.com's S3 Storage Service.

Our Basic Plan gives you up to 50GB of free online storage for all of your files: music, video, photos, documents, and other files.

The Linkup is a place to easily send & receive files with friends and store massive amounts of files. Link with friends, create private or public groups, store files for later access – it’s all inside and just a click (or two) away.

Foremost is a console program to recover files based on their headers, footers, and internal data structures. Foremost can work on image files, such as those generated by dd, Safeback, Encase, etc, or directly on a drive.