There are quite a few sites about this road that I was previously unfamiliar with.
The only one I've gone into a lot so far is Beach Towns at http://www.beachtown.org.
These are nine towns located along the southern stretch of Lake Michigan in Michigan, going north-south:
Silver Lake Sand Dunes/Hart
They also have a great little catchy song, ala "Get Your Kicks" called "When You Drive the West Michigan Pike, it's a Lovely Day."
I Think These Folks Are Serious. --RoadDog