Seeing as digg reader just go "only view unread" and "mark as unread" [1] it's pretty much feature complete for me. I found theoldreader has a bit more "information density" but maybe one day digg will make a compact mode like gmail<p>[1] <a href="http://blog.digg.com/post/55816621304/digg-reader-view-only-unread-and-mark-as-unread-are" rel="nofollow">http://blog.digg.com/post/55816621304/digg-reader-view-only-...</a>