internetheaven - 8:59 pm on Jun 24, 2010 (gmt 0)
This isn't the first time Google has done this. Adsense covered spam ranking in the top spots has come and gone several times over the years. We don't know the inner workings of Google's Finances and what they might suddenly need a boost in revenue for so explanations of the timing are always speculative at best.
What I'm shocked to be reading is that some people that have been around for ages have not created SPAM sites!
When Google started pulling this nonsense years ago we created several spammy MFA sites with a small ad towards our real site. Now, when Google actually wants relevant SERPS our real site ranks, and when they toss their organic SERPS to the wind our junk sites rank and we maintain a decent revenue status that way.
My advice is to create better spam then your opponent. One of my competitors has more than 100 spam sites set up and he is probably earning more just now than when the SERPS are relevant and his single good site ranks! ;)