Help Get Each Others Startups on Digg?
brk: I think you'll generally find that Digg is a big waste of time in terms of promoting a site.  It takes a reasonable amount of effort to get anywhere near the front page, and then when you do you get a crush of mostly unqualified traffic from users who are not likely to ever visit your site again.Self-submissions and "Digg groups" rarely ever work to elevate you above the bowels of the "Upcoming" pages.  One of the things that Digg seems to be particularly good at is detecting this sort of activity.Your time is better spent improving your app and promoting it where it is relevant.  Wait for someone else to take an interest in it and let them submit to Digg/Mixx/etc.