The first substantial references to Blackmoor that I owned were contained in the Hollow World boxed set, and I was aware of it on the World of Greyhawk maps.
Years later I found The First Fantasy Campaign in a used bookstore and grabbed it after a short leafing-through. Years after that, I snagged the white box OD&D through eBay, and the generous soul who sold it surprised me by including all of the supplements in the box (complete with crayon and pencil coloured drawings :lol: ).
It wasn't until even later that I managed to get the DA series.
I don't have anything newer than those, but I have been dithering back and forth about buying some of CMP's pdfs (I don't have a local game store any more
)... I thought perhaps I would try 4e and use Blackmoor as a setting, but I kept using my house rules and own setting for games.
I've never run an official Blackmoor game, but I have used a heavily modified version of The Temple of the Frog and I have used the Ruined Temple of the ID Monster to test ( and laugh with :twisted: ) my players.
How much of the most recent Blackmoor books is just setting information, and how much rules crunch?
Alfred