I love this series of web videos featuring kids reacting to various trends, celebrities or viral videos.  Their latest target is the latest rash of internet photo trends, particularly "planking'.

Kids say some funny things and the kids in this video don't disappoint, with answers like "cause Facebook told them too" and "because the NBA lockout" to the question "Why is planking so popular".http://youtu.be/EuJt0NF7soA