Join the group here : http://groups.yahoo.com/group/freebosto
Also a recreational room has been reserved in an MIT grad dorm MIT for Oct 8th. So this is the night of the next salon. I've heard that the topic is "sex". I'll call it the "Virtue of sex" salon! Lets popularize it and try to get some newbs.
Posting at universities is an idea. I think there are people / groups that can be hired for this. Also livejournal. Is it worth the trouble to post on LJ?