I'm sure there would be more than that if it ended up being offered up. While you may not see an initial reach, I'm sure it would end up making a few hits if you ended up googling a geographic region forum and Nikon.
Then you would not need to rely on the likes of Google or a Flickr... and such.
Making a post would somehow end up getting lost in threads. A forum however will always be there. Now I'm not saying do one for every state, but there are people that make trips based on events. This can help get going on it for the people that are not in that much of a know.
IE.
North East (Maine, VT, RI, Mass, Northern CT)
New York Regional (NJ, CT, NY, PA)
Mid Atlantic (MD, DE, VA, NC)