Mastheads.org

Anyone ever been on http://www.mastheads.org? It seems like an interesting site that allows users (for a fee, of course) to access thousands of magazine mastheads from their site. That seems pretty cool for those who can't get that information off a magazine's Web site or from the local bookstore. I often waste way too much time searching for a query editor's name if I don't have access to the magazine.