I use Dropbox, I'll tell you why: - It integrates nicely with Ubuntu's unity UI. You get a nice tray icon that shows when files are being uploaded / downloaded

I use Dropbox, I'll tell you why: - It integrates nicely with Ubuntu's unity UI. You get a nice tray icon that shows when files are being uploaded / downloaded, what % the transactions are at, how fast they're going, ETA, etc. - It never ever fails to work. - It begins uploading files as soon as they're added to a Dropbox folder. - It allows you to restore deleted files via the web interface. - You can easily share files by right clicking folders in Nautilus. - It syncs across as many devices you want (multiple laptops, desktops, etc.). I've tried many options: - Manual backups via rsync, tarballs, etc. This is generally a bad idea as they take work to setup each time you format your system or get onto a new box, and that's just one more chance for error. - Ubuntu One. This is essentially a ubuntu sponsored Dropbox. In my experience it is VERY buggy. If you have more than 100 or so files backed up it will act oddly: won't immediately backup files, will download only some of your files, crashes often and stops uploading / downloading backups silently (without any messages).