Families interested in board gaming could take a look at Totalcon. This is a yearly event held in Mansfield, MA, that offers a wide selection of games to try. I think the selection of boardgames this year looks particularly promising. If you have any interest at all then this is a fine chance to try a bunch of games and see which ones grab you. Note that there are special activities for younger players and that each event is classified as introductory or as requiring some experience.
Take a look at the Totalcon website for more details. The event occurs feb. 18th through 21st, 2010.