Well to be honest, that My Humps video was extremely disturbing. They have disgraced the asian race. Like I appreciate their effort into trying to make a funny video for their class, but sadly they scarred the eyes of many viewers and probably got bullied for it. The Business Cycle Rap wasn't that bad, and both videos attempted to show the cyles of business using hip-hop. The Qwiki is probably the most useful, as it has straight up facts, and pictures as well.