The Escape blog has another idea on how to make Digg a bit less slanted toward the top users: Collaborative filtering. Basically, make it so that you can get a view of articles dugg by people who dugg similar articles to those that you dugg. (I am so sick of the term “dugg” now!)
While this seems similar to the text mining idea I floated earlier, it also has the advantage of bringing up articles which are truly relevant and interesting for an individual user. Since the whole point of Digg is to have news from all over which is relevant and interesting, this is a terrific idea!