Here's how Digg works: Registered users submit Digg-worthy Web content—news stories, blog entries, videos, pictures, what have you—to the site by writing a synopsis and linking back to the piece. Then, other registered users "community rank" the submission with votes, aka "diggs," and the highest-ranked stories earn promotion to Digg's front page. Registered users also can "bury" stuff they don't like. Think of the registered users as thousands of unpaid editors—or filters, to use Webspeak—and regard their picks as the wisdom of the crowd, to use James Surowiecki's felicitous phrase. Nonregistered users are free to explore the site, of course, and click through to stories. Think of them as readers (or drinkers).