Great! I said.
Then I realized I had to find books suitable for lots of states that weren't very well-represented in middle-grade novels.
A fun but time-consuming project.
Now, look at this!
Somebody else did all the work.
There are a few under-represented states (Hello, Arkansas! May I suggest a book called MAKING FRIENDS WITH BILLY WONG?)
But I can see this being an excellent starting place for some really fun books.
(I wish there were a way to suggest titles because a few have already come to mind.)
UPDATE: Thanks to my commenter, Ramona, for the additional links.
Here's one from NEA: http://www.nea.org/grants/50-state-booklist.html
And this, which has some additional, very interesting links for teachers and writers: