"The best articles are voted to the top by the community, but in a way that makes it difficult to game the system. Instead of being able to vote up your own art

"The best articles are voted to the top by the community, but in a way that makes it difficult to game the system. Instead of being able to vote up your own articles or those written by your friends, readers are given a random sample of articles and asked to compare them in pairs. This A-B approach filters the best articles to the homepage." This is cool; variations are used by recaptcha, etc. I wonder if this could be used by digg? Increasing the quality/reducing gaming of community-based ranking seems like a very good idea.