Bookmarks vs. "Rack Cards"

Because many locations have those acrylic brochure holders, we are experimenting on doing larger bookmarks that will fit in those holders. You may hear us refer to them as "Rack Cards". Rack cards are typically 4 by 9 inches in size. I would love to hear your thoughts about this, and what the customers think when we start. Our first one will come out sometime next week and will be for Brainfuse.