Tony Campbell writes, in response to this post, “I was surprised to see that you hadn’t been using Maps-L. I had taken it for granted that you were on it. I itemise the map lists of which I’m aware at http://www.maphistory.info/lists.html. I’m sure there are others besides those, given that I’m concentrating on historical things.”

I’m in the awkward position of being a generalist who’s interested in maps among other things, rather than a specialist. So I’m trying to keep track of too many things and, as a result, I’m reluctant to sign up at or subscribe to every list and site. I’m currently tracking a number of sites via RSS, and I’m subscribed to MapHist; what other mailing lists do you think are must-reads?