Thanks. No, no 'product' type or business type is relevant. I've double checked the recommended types. I don't want to make my own.
I've done a bit of digging, and from what I can see, people use the 'website' tag on all pages. I can see how this would be attractive because it means that a 'like' for any page on the site is a 'like' for the site as a whole (and turns the 'liker' into a fan/subscriber/whatever-it-is-this-week on Facebook).