Wuala: free Secure Online Storage

Wuala can be downloaded from:
http://www.wuala.com/
For free account, you can get 1GB storage.
Wuala is Secure Online Storage. You can backup, sync, share and access your files everywhere. It is very easy to use. You just need to copy and past your files and folders after downloading Wuala application. All data encrypted on your computer.
I use it to backup my important programming files and find that it is convenient.

Video: Introduction To Wuala (Win)