http://blog.dustinkirkland.com/2010/06/ecryptfs-backup-strategy.html
One strategy to backup encrypted ecryptfs data as suggested by the author of ecryptfs. Useful and simple. Backup the metadata and the raw files with rsync.
http://pastebin.com/yPyK193a
A different strategy to find an encrypted filename from an unencrypted filename under ecryptfs (Ubunut's encrypted home directory system).
http://www.telmon.org/?p=631
Interesting article including a script that figures out a mapping from unencrypted filenames into ecryptfs encrypted filenames. Potentially useful.
http://www.johncompanies.com/
Hosting company from the same people as rsync.net. Reasonably priced, probably ultra reliable, and well suited for privacy, etc.
http://www.savvyadmin.com/secure-remote-file-storage-with-ssh-and-dm-crypt/
Article explaining how to mount an encrypted container on a remote system. The remote file container is mounted over sshfs then locally mounted via dm-crypt. This has some major challenges, the approach is interesting albeit not particularly practical.