On Thursday, Google ran a doodle on its homepage celebrating Bram Stoker's 165th birthday. If you clicked on the doodle, it took you to search results for the query "Bram Stoker Books".
We analyzed the search results page a bit here. We talked about how Google was using the doodle to showcase its Knowledge Graph (and particularly its Knowledge Graph Carousel), as well as Google Shopping and Google Books.
I notice today that the search results page for the query no longer displays Google Shopping results.
Just an observation.
I wonder how much having a Google Doodle that points to these prominent ads helps with clicks.