There's this, from "All Things Considered, on National Public Radio:
"Trend-spotters make big consultant bucks looking for the next big thing. But commentator Louise Rafkin thinks she's spotted a new trend -- and she's going to tell us about it -- for free. A couple of months ago, Rafkin started hearing about the ukulele everywhere, it seems. A friend was taking lessons on the instrument, and there was a festival in Michigan. So Rafkin decided to visit a ukulele club to see what the buzz was all about."
http://www.npr.org/templates/story/story.php?storyId=5584525&ps=rs