Any DIY/installable alternatives to Dropbox?
mileszs: For an rsync-like solution that also handles the tar-ing and (GnuPG) encryption of whatever directory you want to backup, take a look at duplicity (if you're on some Linux flavor).  http://duplicity.nongnu.org/It is a command-line solution, and simple to throw in cron.  In addition, you can use it to back things up to S3 directly.  It's great.