What’s this?

I just got this at the top of a search for “ruby rake” on Google.

Ruby — Rake: 4
According to http://jimweirich.umlcoop.net/index.cgi/Tech/Ruby - More sources »

The url under “More sources” goes here. All I can figure is that this is some kind of authority thing, or like the wtf feature on Technorati. jimweirich is a 4 or something. Maybe this is nothing, or maybe this is the beginning of semantic categorization on Google!!! ??? Why is this important? Well, if you search for Martin Luther King, one of the top links goes to a white supremacist hate page. It may be that Google is moving away from its raw algorithm, which can be gamed, and toward a trustweb system. Actually, it just occurred to me that that result could be from the Google search results tagging system that is already in place. So, is this old news?