I have enabled the blog function on rendez.org, so that students can post assignments on their own page.
Each assignment handed in for credit [1] can be posted as a separate blog entry. If you check off the Groups ... Audience ... Stadia-2006 ... box, your classmates will see the entry as new (i.e. top of the list) when they log on.
In addition, comments can be attached to each entry. As a group, we need to decide how public comments should be.
Links:
[1] http://rendez.org/2006-2008/en/stadia-isbm-2006-credits