How to bring more people to the lecture series

Hey Folks! Paul didn't have a huge turnout for his last presentation at the library (the first of the Sepp Holzer films--which are awesome!). I told him I'd try and help bring in more people next time. Any ideas of how to do so, other than doing the usual posting to local events calendars, etc?

I am definitely interested in getting to some of these at some point, but I normally work in Helena on Thursdays which makes it somewhat tough most of the time.