Jungle Disk is a software package and service for offline storage of data. It is particularly useful for backing up data and storing it at a different facility so that if something were to happen to your computer and its environment (e.g. a fire) then you would still have your backups.

It is also great for accessing your data from different computers and software is provided for Macs, PCs, Linux, and there’s even a web client so that you can get at your data from any type of machine or environment. The software makes the external data look like just another mount point (on Macs and Linux) or a drive (e.g. P:) on Windows so that you can move and copy just like with local files.

The pricing scheme is very good, too. The data is stored on Amazon.com’s S3 and you pay for just the amount that you use (both in terms of disk space and bandwidth for uploading/dowloading). It costs me only a couple of dollars/month for around 3Gb. You also pay a one time fee for the Jungle Disk software ($20US).

I have been using it for a couple of months now with no problems and find it very easy to setup and use.