Apparently you are taking my comments as something other than they were intended based on your response...but I am very rarely wrong if I post something, and I'm the first to admit it if I am, so here'e the post from the Google's team;
http://googleblog.blogspot.com/2008/...ed-search.html
Notice the date in the URL and in the post...
They state,...and everything else in the post you reference word-for-word...they just didn't put a date on it.
As far as your algo change, there were over 350 last year so they are always happening, sometimes you can see changes, sometimes you won't. They only name this big ones so they can guage reaction.
Lastly, I'd love to see some proof of what you stated about doing social bookmarking to drop out a competitors offset listings with spam links.
Mainly because this is an obvious attack on my advice to use social bookmarking to do this.
I'd like to see it for 2 reasons; the first is I know it works and have done it for 3 years, as recently as last week...
More importantly, your accusation holds no merit in that how could a site get penalised when by building SBM's to a third party - They aren't building links to their own site, or to their competitor that has the secondary listing. So how would that work?
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