Dana Ritterbusch and Ginny DiGuiseppi aren't your ordinary "Harry Potter" fans. The two college students from Denver recently began a series of YouTube videos in which "Hogwarts students" respond to people's everyday questions. The videos, called "Ask Hogwarts," are parodies of the differences between the different Hogwarts houses in the "Harry Potter" books and movies. … Continue reading Hogwarts houses answer your questions