Cliff Urr writes "At a recent conference on the business implications of video blogging, it was observed that wildly popular online video blogs like "Ask a Ninja" and others were quite unknown to the businesspeople in the audience. But, says an article on the conference, the people behind these sites "to the average 15-year-old MySpace user...are heroes." Perhaps "Ninja Got Answers" could spark some ideas for reference services sites. For the article: YouTube's Limitations: "Can Web Video Make a Buck?" and for "Ask a Ninja""