[Using Sakai] Blog -tool class rss feed

[Marilyn Dispensa]

While each user in Sakai can get an RSS feed of their posts, is there 
any way to aggregate all the posts into one feed for the whole class - 
so that you could have a page that runs all the posts in reverse 
chronological order?
I know it can be done in RSS aggregators but then you have to add 
everyone manually.
This would be a nice feature and something that doesn't seem too difficult.
Marilyn