While Digg gets more mainstream, the story sources diversity is eroding

"And that select group appears to be getting smaller and more exclusive by the day."

Did I miss something or did he provide no evidence of this? I don't see any data about what the distribution looked like in the past. How do we know diversity is eroding? It's not a trend if you're only looking at one point in time.

I also couldn't tell whether the top 11 tech sources were the _only_ tech sources or whether there was a long tail of one-time-source stories.

The interesting part is that with lots of people and no editors, there is a tendency for a concentration of sources. Although I don't see this concentration as being critical (after all, there are not so many "objectively" respectable tech blogs out there), there seems to be a point for regulation, to ensure diversity.

Apart from that, it was amusing to feel Richard MacManus's (open) jealousy over the other tech blogs...

Ontogeny recapitulates phylogeny. Social news sites devolve into top 10 lists.

would it be wise to also include into the algorithm for frontpage ranking, the diversity of sources for HN (if and when it becomes a problem)? Or will determined submitters just circumvent it by proxying the article with another url?