Non Profits on YouTube

I was on a panel called Social Media: Expanding the Nonprofit Reach with Maryrose Dunton, head of User Experience from YouTube. She has been one of the main champions for their Non Profit channel. She made a great point about what's "useful" on YouTube when it comes to Non Profits. Seems that most of us are limiting our videos to PSAs primarily, where in fact we should be posting more YouTube-ish videos - personal stories, experiences, etc. She pointed out One.org, who does a great job with their channel. And the theory is true with us at March of Dimes. our most visited videos are stories and archival celeb spots, rather than current PSAs.

The question is: what is the best way for a cause engage an audience looking for entertainment?