During lectures I gave this past August at my local genealogy society and at a conference, I polled the audience asking how many who are on Facebook had checked if there is an existing Facebook Group for their ancestral hometowns, and few people raised their hands. When I showed them the kind of information that I have obtained from one of my ancestral hometown Groups, they were amazed.
Does your library or genealogical society run both a Facebook Page and a Facebook Group? Or multiple Groups? If so, you might not yet be aware that Facebook quietly rolled out a new feature recently–the ability to link together your Facebook Page and your Facebook Group.