Among the archived Fedora Classroom sessions, on https://fedoraproject.org/wiki/Classroom there is one link to an Xfce session, http://meetbot.fedoraproject.org/meetbot/fedora-classroom/2009-07-30/fedora-classroom.2009-07-30-01.00.html If I click on that link, I get a "403 Forbidden" reply. I would guess that is not intended.