caveman - 10:51 pm on Feb 2, 2005 (gmt 0)

Changes are of quite varying magnitudes in the 20+ categories we watch closely. Our sites look pretty stable so far, but lots of activity swirling around us.

I wonder if those seeing "massive changes" have any commonality?

<early guess>

Looks to me as though authority sites are playing a bigger role, insofar as they have popped up a bit here and there, and are also helping the sites that they link to. May be true of hub sites as well.

A related guess is that those nofollow tags could conceiveably already be playing a role here, such that the balance has shifted away from sites that benefitted greatly by weak and/or dubious inbounds. (However, not sure that those tags could have an effect so fast.)

</early guess>