All you have to do is create a new file (I called mine rendezvous.conf) in the appropriate directory, with the following content.
# Only the pages of users who have edited their
# default home pages will be advertised on Rendezvous.
# RegisterUserSite customized-users
# Rendezvous advertising for the primary site is off by default.
RegisterResource "Foo Bookmark text as shown in menus" /foo
Redirect /foo http://www.foo.com
RegisterResource "Bar Bookmark text" /bar
Redirect /bar http://www.bar.com
Now all you need to do is
sudo apachectl gracefuland the bookmarks you added to this file should show up in the Rendezvous submenu of the Bookmarks menu for people on your LAN.