Dropbox

Dropbox is a website where you can save documents, pictures, videos... Like a pen-drive. You have 2GB online. And it is a cloud where you can upload something and then you can download it from another coputer. Also, in Dropbox you can have your own and particular documents and you can have a public folder. This public folder need a link to enter on it. Dropbox is a very usefull web!
The website is:
http://www.dropbox.com/