Technology journalist Kevin Rose decided to find out. Two years ago he started a technology news site called Digg.com. The Web site lets users submit links to stories they recommend, along with brief summaries. Users also vote for submissions by clicking on a button labeled "digg it." Each person can vote once per story. The most popular stories -- determined by a formula the site doesn't disclose, including factors like the number of votes received and the time of day -- are automatically promoted to the site's main page.