Wuala is based on a revolutionary technology that was researched for the most part at ETH Zurich (Swiss Federal Institute of Technology). Users start with 1 GB of storage but can get as much as they want, either by trading idle disk space or by buying additional storage. All files get encrypted before they leave the user's computer and the user chooses who gets access to which folder.Wuala is a free social online storage which allows its users to securely store, backup, and access files from anywhere and to share files easily with friends, groups, and the world.Wuala has no constraints regarding file size or quality. One of the obvious advantages is that your friends can upload photos in full quality for you to enjoy as a full screen slideshow. Being fully integrated into the operating system, Wuala can make use of the gorgeous slideshow feature of the system itself.