I've never had HUGE articles on digg, but big enough ones I think to give tips. But the very few that I have, are... sort of to do with old sites or different sites. I like to keep every sitework seperate so I don't intertwine site marketing. Unless of course the sites are related, but this is the first sort of.. internet marketing blog i've done.
Thanks for the info jon2k6. Continuing with your list I once read an interview with a top digg user who suggested what one should do to get dugg. You can find the interview by googling "interview with top digg user"