If it is true that students learn more by doing than by passively absorbing information, then Google Maps offers students a blank canvas of the world on which they can create a narrative in response to the questions that are raised in a rhetoric classroom.
During the CWRL's fall orientation, Jim Brown described how Google Maps might be used in for pedagogical purposes. You can read his original blog post describing a pedagogical use of Google's My Maps feature here. Since then, other CWRL instructors have explored further uses for Google Maps which resulted in engaging active learning experiences for their students.