My comments: The weblog's in Icelandic, so I can't understand it, but you can get the gist about how it works by taking a look at the page. This type of weblog is closer than any I have seen to the blog that I would like to use with my students of Tourism this year.
"All students in the course...could write to this weblog but it was not obligatory to participate, this weblog was for discussion about the projects of individual students and this was the place where the students who wanted comments about the project they were working on asked for comments. It also turned out to be the spot for social talk between students where they joked and informed each other of stuff they wanted to broadcast."
comments from :Structure - Units