Online storage of work

Trying to decide which method would be best to set up for students to share their work. We could use MobileMe and set up an account for the class or we could use iWork and have a class account. Then there is drop box that we could use. Perhaps if we trial them all we can see which one works the easiest and has the least amount of hassles for use. Everything we do needs to have the technology working transparently.  Lastly there is email as an option to hand in work.  Oh and of course I wonder if we’ll be able to upload to the Ultranet?

Just thinking again blogpress would be a good way for students to publish their work as it works very well on the iPads at school.
If you have any ideas please add a comment.