A week ago I created a Webnote area to be used by my students. It is basically digital sticky post-it notes. I plan to put a link to the webnotes on the blog during the school holidays. I hope the students will leave little notes detailing what they have been up to in the school holidays.
Here is a link to my class Webnote page.
Very easy to set up and could be quite a powerful tool if used by students, they can change the colour of the sticky notes and move them around on the screen. Looks like FUN!