Distributed moderation and filtering systems are becoming increasingly common on the web. This paper examines reddit.com, a Social News website where users vote to determine which stories will be featured in high-visibility locations. User voting activity and attention are found to be highly concentrated on the website’s front page. The consequences of this are considered, chiefly by studying reddit’s coverage of a major news story. Minority opinions are found to be slightly marginalised but not excluded from high-visibility locations. The paper concludes by discussing some positive and negative effects of the emphasis reddit places on its front page and the collective decisions about which items appear there.