No, Stern can get their own info. Plenty of people on their boards and forums.
There are lots of Pinball Maps out there now. Portland has an app for the iPhone and Android, even.
Mine started as an exercise in AJAX back in 2000, and it's evolved into a system where anywhere on the planet could be indexed.
The maps are here:
http://www.laughingotter.com/pinball/
You'll probably want to start with the Maps of All Known Areas.
I'm still working on the main data entry interface. It works, but the design could be improved somewhat, especially on the Game Entry screen.
Also, the Games maps are still in development, but I thought it would be cool if you could have maps detailing where to find a specific game, if at least one was known in the database.
You'll also find out more about pinball in music than you'll probably ever care about.