Most group sales professionals have heard about Groople.com, but there are some other sites popping up out there as well. GroupAbout.com is a relatively new one with exciting prospects for arts organizations. They offer banner advertising on search results pages.
Lets say that the group is planning a trip to Pittsburgh, for example. When they put in that information when looking for hotels or restaurants, The Pittsburgh Cultural Trust banner would appear. Hopefully the group leader will say, “Hey, I think we should go to a show!”
The advertising is not the cheapest thing in the world, but perhaps a couple organizations pooling their money could make it doable.