physics - 10:17 pm on Oct 6, 2009 (gmt 0)

Interesting read, guess I'm in a funny mood though because the main things I noticed were a couple of quotes that seemed pretty amusing to me.

“Given this URL, how spammy do we think this URL is?” And we might use dozens of signals—what sort of spammy words do they use, the backlinks to this URL, how spammy do those look. All of those blend together into a master ranking algorithm.

Sounds like every website is assumed guilty until proven innocent :p Basically he's saying every URL is spam, just more or less spammy than others.

So there’s a bunch of stuff going on in the background where Google is querying itself sometimes to make sure we’re returning the right results.

Google Google's itself!