We had some great publicity for the exhibit by the Bay Area LEGO Users Group at the Museum of American Heritage in Palo Alto, CA for the last few weekends. 
There were television coverage by two different local stations, articles in the newspaper, and lots and lots of word-of-mouth advertising. We got several new members in the club and lots of people signing up for our club mailing lists or taking business cards home.
I was sick for most of the last two weekends, but did go on Sunday (the last day) and shot some video footage. However, a couple of other club members took photos of the crowds and sent them to me with permission to post online, so I have done so in a Flickr photoset. Please check that out by clicking the photo above, or view it as a slideshow. You can also view all my photos from this exhibit (or as a slideshow).
Next year, we’re not sure if we’ll be able to have the exhibit at the museum! The room is just not big enough to accommodate that kind of crowd. However we’ve already started talking about alternatives that would scale better, so don’t worry… we’ll still have an exhibit. We’re also talking to another museum about having an exhibit this summer but haven’t announced any details yet.
The next public event by BayLUG is our meeting at MoAH on Saturday, February 21 (note: originally scheduled for Sunday the 22nd, but the date has been changed due to a schedule conflict). Hope to see you there!