The Excelsior File has a post on the way the Horrid Henry books are marketed to boys. I had never heard of this series, but a lot of other people have. Check out the list of blog reviews at the end of Fuse #8's review.
A couple of us were just talking about book marketing folks embracing blogs in the comments to yesterday's post. Which is quite different from the kind of marketing David Elzey is talking about, by the way.
Someone could create two different marketing case studies on this one book.