There are currently three demo web source areas, living on /koko/var/web. They are exec, faculty and sysprog. They can only be seen and edited locally by members of the groups of the same names.
Restriction of the distribution of the web pages over the net is up to the members of the group. You can use .htaccess and .htpasswd to do this. The sysprog web page demonstrates this with username: demo, password: demo. We are currently looking into how users can authenticate as themselves (using their own login usernames and passwords).