As I write this, I’m conscious of the claims some SEOs make that Google "needs" them in order to make the results relevant. Google would hardly collapse without optimizers’ interest, but can the same be said about Digg?
Digg’s Kevin Rose has officially announced what we’ve all seen over the past week or so: it’s now a lot harder to push your content onto the front page of Digg. In fact, Digg’s adjusting its algorithm so that you’ll need well north of 100 Diggs to have any chance.
As we point out in our FAQ, occasionally you will see stories in the upcoming section with 100+ Diggs – this is evidence of our promotion algorithm hard at work. One of the keys to getting a story promoted is diversity in Digging activity. When the algorithm gets the diversity it needs, it will promote a story from the Upcoming section to the home page. This way, the system knows a large variety of people will be into the story.