vordmeister - 7:21 pm on Mar 5, 2011 (gmt 0)
One thing that has been mentioned before is it feels like a penalty. Looks like the algo is de-favouring sites rather than working out what it really wants to see in the serps and favouring those sites. I could be wrong. They might just really like everything ehow has to say.
It's been happening a while. I'm on a .co.uk which worked perfectly well in google.com when I launched, but in 2009 they decided the content couldn't possibly be interesting to anyone in the USA so they ranked it down -20. Their loss and their US visitors' loss. Not my loss as they bumped me up in the UK at the same time.
It feels to me that sites are just being demoted with all these algo changes and the serps are being filled with whatever is left. The idea presumably being to knock the remaining sites they don't like with a later update.
These guys have PhDs so I'm not going to be able to argue with them on an intellectual level. I would note that a lot of people I've met with PhDs have had no common sense at all.